47400256656 has 45 divisors (see below), whose sum is σ = 132662196979. Its totient is φ = 15799214688.

The previous prime is 47400256633. The next prime is 47400256667. The reversal of 47400256656 is 65665200474.

The square root of 47400256656 is 217716.

It is a perfect power (a square), and thus also a powerful number.

47400256656 is a `hidden beast` number, since 47 + 40 + 0 + 2 + 566 + 5 + 6 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2603521 + ... + 2621663.

Almost surely, 2^47400256656 is an apocalyptic number.

47400256656 is the 217716-th square number.

It is an amenable number.

47400256656 is an abundant number, since it is smaller than the sum of its proper divisors (85261940323).

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

47400256656 is an frugal number, since it uses more digits than its factorization.

47400256656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36300 (or 18148 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 47400256656 in words is "forty-seven billion, four hundred million, two hundred fifty-six thousand, six hundred fifty-six".