74705381572 has 48 divisors (see below), whose sum is σ = 140970312000. Its totient is φ = 34532780544.

The previous prime is 74705381561. The next prime is 74705381573. The reversal of 74705381572 is 27518350747.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (74705381573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553504 + ... + 675112.

It is an arithmetic number, because the mean of its divisors is an integer number (2936881500).

Almost surely, 2^74705381572 is an apocalyptic number.

It is an amenable number.

74705381572 is a deficient number, since it is larger than the sum of its proper divisors (66264930428).

74705381572 is a wasteful number, since it uses less digits than its factorization.

74705381572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121828 (or 121826 counting only the distinct ones).

The product of its (nonzero) digits is 1646400, while the sum is 49.

The spelling of 74705381572 in words is "seventy-four billion, seven hundred five million, three hundred eighty-one thousand, five hundred seventy-two".