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870712086761 = 115911311872753
BaseRepresentation
bin11001010101110100111…
…11000001000011101001
310002020110102101221020222
430222322133001003221
5103231204243234021
61503555525455425
7116623025423246
oct14527237010351
93066412357228
10870712086761
113062a3301120
121208bb871575
1364152aa5a2a
14301dd7805cd
15179b11b16ab
hexcaba7c10e9

870712086761 has 16 divisors (see below), whose sum is σ = 974515648320. Its totient is φ = 771253969920.

The previous prime is 870712086757. The next prime is 870712086763. The reversal of 870712086761 is 167680217078.

870712086761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 870712086761 - 22 = 870712086757 is a prime.

It is a super-2 number, since 2×8707120867612 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870712086763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5863040 + ... + 6009713.

It is an arithmetic number, because the mean of its divisors is an integer number (60907228020).

Almost surely, 2870712086761 is an apocalyptic number.

It is an amenable number.

870712086761 is a deficient number, since it is larger than the sum of its proper divisors (103803561559).

870712086761 is a wasteful number, since it uses less digits than its factorization.

870712086761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11872936.

The product of its (nonzero) digits is 1580544, while the sum is 53.

The spelling of 870712086761 in words is "eight hundred seventy billion, seven hundred twelve million, eighty-six thousand, seven hundred sixty-one".

Divisors: 1 11 59 113 649 1243 6667 73337 11872753 130600283 700492427 1341621089 7705416697 14757831979 79155644251 870712086761