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86071795999 = 712295970857
BaseRepresentation
bin101000000101001000…
…1110110000100011111
322020011111021021021021
41100022101312010133
52402233334432444
6103312453145011
76134640123520
oct1201221660437
9266144237237
1086071795999
1133559315302
121482132b167
13816904aa07
144247316847
15238b589584
hex140a47611f

86071795999 has 4 divisors (see below), whose sum is σ = 98367766864. Its totient is φ = 73775825136.

The previous prime is 86071795981. The next prime is 86071796011. The reversal of 86071795999 is 99959717068.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86071795999 - 215 = 86071763231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86071795969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6147985422 + ... + 6147985435.

It is an arithmetic number, because the mean of its divisors is an integer number (24591941716).

Almost surely, 286071795999 is an apocalyptic number.

86071795999 is a deficient number, since it is larger than the sum of its proper divisors (12295970865).

86071795999 is a wasteful number, since it uses less digits than its factorization.

86071795999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12295970864.

The product of its (nonzero) digits is 77157360, while the sum is 70.

The spelling of 86071795999 in words is "eighty-six billion, seventy-one million, seven hundred ninety-five thousand, nine hundred ninety-nine".

Divisors: 1 7 12295970857 86071795999