27404516645 has 32 divisors (see below), whose sum is σ = 36774743040. Its totient is φ = 19431360000.

The previous prime is 27404516627. The next prime is 27404516693. The reversal of 27404516645 is 54661540472.

It is a de Polignac number, because none of the positive numbers 2^k-27404516645 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27404516596 and 27404516605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4396391 + ... + 4402619.

It is an arithmetic number, because the mean of its divisors is an integer number (1149210720).

Almost surely, 2^27404516645 is an apocalyptic number.

It is an amenable number.

27404516645 is a deficient number, since it is larger than the sum of its proper divisors (9370226395).

27404516645 is a wasteful number, since it uses less digits than its factorization.

27404516645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8237.

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 27404516645 in words is "twenty-seven billion, four hundred four million, five hundred sixteen thousand, six hundred forty-five".