74434306455 has 80 divisors (see below), whose sum is σ = 141373283040. Its totient is φ = 37338236928.

The previous prime is 74434306451. The next prime is 74434306537. The reversal of 74434306455 is 55460343447.

74434306455 is a `hidden beast` number, since 74 + 43 + 430 + 64 + 55 = 666.

It is not a de Polignac number, because 74434306455 - 2² = 74434306451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 74434306455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74434306451) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14710716 + ... + 14715774.

It is an arithmetic number, because the mean of its divisors is an integer number (1767166038).

Almost surely, 2^74434306455 is an apocalyptic number.

74434306455 is a deficient number, since it is larger than the sum of its proper divisors (66938976585).

74434306455 is a wasteful number, since it uses less digits than its factorization.

74434306455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7230 (or 7221 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 45.

The spelling of 74434306455 in words is "seventy-four billion, four hundred thirty-four million, three hundred six thousand, four hundred fifty-five".