74597664372 has 96 divisors (see below), whose sum is σ = 222058281984. Its totient is φ = 18925401600.

The previous prime is 74597664371. The next prime is 74597664377. The reversal of 74597664372 is 27346679547.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74597664371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 899029 + ... + 978492.

It is an arithmetic number, because the mean of its divisors is an integer number (2313107104).

Almost surely, 2^74597664372 is an apocalyptic number.

It is an amenable number.

74597664372 is an abundant number, since it is smaller than the sum of its proper divisors (147460617612).

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

74597664372 is a wasteful number, since it uses less digits than its factorization.

74597664372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877589 (or 1877587 counting only the distinct ones).

The product of its digits is 53343360, while the sum is 60.

The spelling of 74597664372 in words is "seventy-four billion, five hundred ninety-seven million, six hundred sixty-four thousand, three hundred seventy-two".