27876712956 has 24 divisors (see below), whose sum is σ = 67288618320. Its totient is φ = 8971815552.

The previous prime is 27876712951. The next prime is 27876712957. The reversal of 27876712956 is 65921767872.

It is a super-2 number, since 2×27876712956² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27876712956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27876712951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40052401 + ... + 40053096.

It is an arithmetic number, because the mean of its divisors is an integer number (2803692430).

Almost surely, 2^27876712956 is an apocalyptic number.

It is an amenable number.

27876712956 is an abundant number, since it is smaller than the sum of its proper divisors (39411905364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27876712956 is a wasteful number, since it uses less digits than its factorization.

27876712956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80105533 (or 80105531 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 60.

The spelling of 27876712956 in words is "twenty-seven billion, eight hundred seventy-six million, seven hundred twelve thousand, nine hundred fifty-six".