27216440408 has 64 divisors (see below), whose sum is σ = 56286489600. Its totient is φ = 12279928320.

The previous prime is 27216440393. The next prime is 27216440417. The reversal of 27216440408 is 80404461272.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

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, 826385 + ... + 858687.

It is an arithmetic number, because the mean of its divisors is an integer number (879476400).

Almost surely, 2^27216440408 is an apocalyptic number.

It is an amenable number.

27216440408 is an abundant number, since it is smaller than the sum of its proper divisors (29070049192).

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

27216440408 is a wasteful number, since it uses less digits than its factorization.

27216440408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32592 (or 32588 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 38.

The spelling of 27216440408 in words is "twenty-seven billion, two hundred sixteen million, four hundred forty thousand, four hundred eight".