74320573264538 has 16 divisors (see below), whose sum is σ = 112631875055784. Its totient is φ = 36776626667520.

The previous prime is 74320573264519. The next prime is 74320573264541. The reversal of 74320573264538 is 83546237502347.

It can be written as a sum of positive squares in 4 ways, for example, as 58148296003009 + 16172277261529 = 7625503^2 + 4021477^2 .

It is a super-2 number, since 2×74320573264538² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9882956 + ... + 15694392.

Almost surely, 2^{74320573264538} is an apocalyptic number.

74320573264538 is a deficient number, since it is larger than the sum of its proper divisors (38311301791246).

74320573264538 is a wasteful number, since it uses less digits than its factorization.

74320573264538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5877457.

The product of its (nonzero) digits is 101606400, while the sum is 59.

The spelling of 74320573264538 in words is "seventy-four trillion, three hundred twenty billion, five hundred seventy-three million, two hundred sixty-four thousand, five hundred thirty-eight".