74178708363 has 80 divisors (see below), whose sum is σ = 115935636960. Its totient is φ = 47223461376.

The previous prime is 74178708319. The next prime is 74178708389. The reversal of 74178708363 is 36380787147.

It is not a de Polignac number, because 74178708363 - 2¹⁸ = 74178446219 is a prime.

It is a super-2 number, since 2×74178708363² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (74178704363) 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, 71808495 + ... + 71809527.

It is an arithmetic number, because the mean of its divisors is an integer number (1449195462).

Almost surely, 2^74178708363 is an apocalyptic number.

74178708363 is a deficient number, since it is larger than the sum of its proper divisors (41756928597).

74178708363 is a wasteful number, since it uses less digits than its factorization.

74178708363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530 (or 1521 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 74178708363 in words is "seventy-four billion, one hundred seventy-eight million, seven hundred eight thousand, three hundred sixty-three".