73407746664 has 128 divisors (see below), whose sum is σ = 236990592000. Its totient is φ = 20618131392.

The previous prime is 73407746623. The next prime is 73407746717. The reversal of 73407746664 is 46664770437.

It is a super-3 number, since 3×73407746664³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 73407746664.

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, 322234 + ... + 500649.

It is an arithmetic number, because the mean of its divisors is an integer number (1851489000).

Almost surely, 2^73407746664 is an apocalyptic number.

It is an amenable number.

73407746664 is an abundant number, since it is smaller than the sum of its proper divisors (163582845336).

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

73407746664 is a wasteful number, since it uses less digits than its factorization.

73407746664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822964 (or 822954 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 54.

The spelling of 73407746664 in words is "seventy-three billion, four hundred seven million, seven hundred forty-six thousand, six hundred sixty-four".