27977437096 has 128 divisors (see below), whose sum is σ = 63550080000. Its totient is φ = 11533427136.

The previous prime is 27977437087. The next prime is 27977437097. The reversal of 27977437096 is 69073477972.

It is not an unprimeable number, because it can be changed into a prime (27977437097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7903695 + ... + 7907233.

It is an arithmetic number, because the mean of its divisors is an integer number (496485000).

Almost surely, 2^27977437096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27977437096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31775040000).

27977437096 is an abundant number, since it is smaller than the sum of its proper divisors (35572642904).

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

27977437096 is a wasteful number, since it uses less digits than its factorization.

27977437096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676 (or 3658 counting only the distinct ones).

The product of its (nonzero) digits is 28005264, while the sum is 61.

The spelling of 27977437096 in words is "twenty-seven billion, nine hundred seventy-seven million, four hundred thirty-seven thousand, ninety-six".