74185533934428 has 96 divisors (see below), whose sum is σ = 203134325022720. Its totient is φ = 20634317484480.

The previous prime is 74185533934397. The next prime is 74185533934441. The reversal of 74185533934428 is 82443933558147.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72153768 + ... + 73174703.

It is an arithmetic number, because the mean of its divisors is an integer number (2115982552320).

Almost surely, 2^{74185533934428} is an apocalyptic number.

It is an amenable number.

74185533934428 is an abundant number, since it is smaller than the sum of its proper divisors (128948791088292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74185533934428 is a wasteful number, since it uses less digits than its factorization.

74185533934428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145328647 (or 145328645 counting only the distinct ones).

The product of its digits is 348364800, while the sum is 66.

The spelling of 74185533934428 in words is "seventy-four trillion, one hundred eighty-five billion, five hundred thirty-three million, nine hundred thirty-four thousand, four hundred twenty-eight".