73647034664 has 32 divisors (see below), whose sum is σ = 157935977280. Its totient is φ = 31538834304.

The previous prime is 73647034663. The next prime is 73647034667. The reversal of 73647034664 is 46643074637.

It is not an unprimeable number, because it can be changed into a prime (73647034663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429917 + ... + 576300.

It is an arithmetic number, because the mean of its divisors is an integer number (4935499290).

Almost surely, 2^73647034664 is an apocalyptic number.

It is an amenable number.

73647034664 is an abundant number, since it is smaller than the sum of its proper divisors (84288942616).

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

73647034664 is a wasteful number, since it uses less digits than its factorization.

73647034664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007537 (or 1007533 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 50.

The spelling of 73647034664 in words is "seventy-three billion, six hundred forty-seven million, thirty-four thousand, six hundred sixty-four".