74454845392 has 20 divisors (see below), whose sum is σ = 144373678020. Its totient is φ = 37197122048.

The previous prime is 74454845351. The next prime is 74454845411. The reversal of 74454845392 is 29354845447.

It can be written as a sum of positive squares in 2 ways, for example, as 71725409856 + 2729435536 = 267816^2 + 52244^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1873513 + ... + 1912840.

It is an arithmetic number, because the mean of its divisors is an integer number (7218683901).

Almost surely, 2^74454845392 is an apocalyptic number.

It is an amenable number.

74454845392 is a deficient number, since it is larger than the sum of its proper divisors (69918832628).

74454845392 is a wasteful number, since it uses less digits than its factorization.

74454845392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787590 (or 3787584 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 55.

Adding to 74454845392 its sum of digits (55), we get a palindrome (74454845447).

The spelling of 74454845392 in words is "seventy-four billion, four hundred fifty-four million, eight hundred forty-five thousand, three hundred ninety-two".