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11872006670847 = 33957335556949
BaseRepresentation
bin1010110011000010101010…
…1111011000100111111111
31120000221201120001022002010
42230300222233120213333
53024002332201431342
641125531412502303
72333503251452331
oct254605257304777
946027646038063
1011872006670847
113867987299234
1213b8a5b01a993
136816aa48986b
142d0872c27451
15158c4133b29c
hexacc2abd89ff

11872006670847 has 4 divisors (see below), whose sum is σ = 15829342227800. Its totient is φ = 7914671113896.

The previous prime is 11872006670801. The next prime is 11872006670861. The reversal of 11872006670847 is 74807660027811.

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

It is not a de Polignac number, because 11872006670847 - 28 = 11872006670591 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 (11872006670047) 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, 1978667778472 + ... + 1978667778477.

It is an arithmetic number, because the mean of its divisors is an integer number (3957335556950).

Almost surely, 211872006670847 is an apocalyptic number.

11872006670847 is a deficient number, since it is larger than the sum of its proper divisors (3957335556953).

11872006670847 is an equidigital number, since it uses as much as digits as its factorization.

11872006670847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957335556952.

The product of its (nonzero) digits is 6322176, while the sum is 57.

The spelling of 11872006670847 in words is "eleven trillion, eight hundred seventy-two billion, six million, six hundred seventy thousand, eight hundred forty-seven".

Divisors: 1 3 3957335556949 11872006670847