274378632564 has 12 divisors (see below), whose sum is σ = 640216809344. Its totient is φ = 91459544184.

The previous prime is 274378632511. The next prime is 274378632607. The reversal of 274378632564 is 465236873472.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11432443012 + ... + 11432443035.

Almost surely, 2^274378632564 is an apocalyptic number.

It is an amenable number.

274378632564 is an abundant number, since it is smaller than the sum of its proper divisors (365838176780).

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

274378632564 is a wasteful number, since it uses less digits than its factorization.

274378632564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22864886054 (or 22864886052 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 57.

The spelling of 274378632564 in words is "two hundred seventy-four billion, three hundred seventy-eight million, six hundred thirty-two thousand, five hundred sixty-four".