74724596164 has 27 divisors (see below), whose sum is σ = 135153096141. Its totient is φ = 36148861920.

The previous prime is 74724596129. The next prime is 74724596183. The reversal of 74724596164 is 46169542747.

It is a happy number.

The square root of 74724596164 is 273358.

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

It can be written as a sum of positive squares in only one way, i.e., 5618701764 + 69105894400 = 74958^2 + 262880^2 .

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, 16945992 + ... + 16950400.

Almost surely, 2^74724596164 is an apocalyptic number.

74724596164 is the 273358-th square number.

It is an amenable number.

74724596164 is a deficient number, since it is larger than the sum of its proper divisors (60428499977).

74724596164 is an frugal number, since it uses more digits than its factorization.

74724596164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8884 (or 4442 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 55.

The spelling of 74724596164 in words is "seventy-four billion, seven hundred twenty-four million, five hundred ninety-six thousand, one hundred sixty-four".