27726728408 has 32 divisors (see below), whose sum is σ = 55180407600. Its totient is φ = 13015944192.

The previous prime is 27726728387. The next prime is 27726728411. The reversal of 27726728408 is 80482762772.

It is a self number, because there is not a number n which added to its sum of digits gives 27726728408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193610 + ... + 304857.

Almost surely, 2^27726728408 is an apocalyptic number.

It is an amenable number.

27726728408 is a deficient number, since it is larger than the sum of its proper divisors (27453679192).

27726728408 is a wasteful number, since it uses less digits than its factorization.

27726728408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498899 (or 498895 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 53.

The spelling of 27726728408 in words is "twenty-seven billion, seven hundred twenty-six million, seven hundred twenty-eight thousand, four hundred eight".