47218508964 has 36 divisors (see below), whose sum is σ = 130208616720. Its totient is φ = 14308638960.

The previous prime is 47218508957. The next prime is 47218508971. The reversal of 47218508964 is 46980581274.

It is a happy number.

47218508964 is a `hidden beast` number, since 4 + 72 + 1 + 8 + 508 + 9 + 64 = 666.

47218508964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47218508957) and next prime (47218508971).

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 47218508964.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59618934 + ... + 59619725.

It is an arithmetic number, because the mean of its divisors is an integer number (3616906020).

Almost surely, 2^47218508964 is an apocalyptic number.

47218508964 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

47218508964 is an abundant number, since it is smaller than the sum of its proper divisors (82990107756).

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

47218508964 is a wasteful number, since it uses less digits than its factorization.

47218508964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119238680 (or 119238675 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 47218508964 in words is "forty-seven billion, two hundred eighteen million, five hundred eight thousand, nine hundred sixty-four".