27811054992 has 80 divisors (see below), whose sum is σ = 85678801920. Its totient is φ = 7600534656.

The previous prime is 27811054981. The next prime is 27811055023. The reversal of 27811054992 is 29945011872.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1791642 + ... + 1807097.

It is an arithmetic number, because the mean of its divisors is an integer number (1070985024).

Almost surely, 2^27811054992 is an apocalyptic number.

It is an amenable number.

27811054992 is an abundant number, since it is smaller than the sum of its proper divisors (57867746928).

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

27811054992 is a wasteful number, since it uses less digits than its factorization.

27811054992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3598780 (or 3598774 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 27811054992 in words is "twenty-seven billion, eight hundred eleven million, fifty-four thousand, nine hundred ninety-two".