27776603864 has 32 divisors (see below), whose sum is σ = 53368286400. Its totient is φ = 13548656160.

The previous prime is 27776603857. The next prime is 27776603887. The reversal of 27776603864 is 46830667772.

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, 162782 + ... + 286445.

It is an arithmetic number, because the mean of its divisors is an integer number (1667758950).

Almost surely, 2^27776603864 is an apocalyptic number.

It is an amenable number.

27776603864 is a deficient number, since it is larger than the sum of its proper divisors (25591682536).

27776603864 is a wasteful number, since it uses less digits than its factorization.

27776603864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449423 (or 449419 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 56.

The spelling of 27776603864 in words is "twenty-seven billion, seven hundred seventy-six million, six hundred three thousand, eight hundred sixty-four".