74401993152 has 56 divisors (see below), whose sum is σ = 218728086800. Its totient is φ = 24800663808.

The previous prime is 74401993117. The next prime is 74401993181. The reversal of 74401993152 is 25139910447.

74401993152 is a `hidden beast` number, since 7 + 4 + 401 + 9 + 93 + 152 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 74401993098 and 74401993107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21526627 + ... + 21530082.

Almost surely, 2^74401993152 is an apocalyptic number.

74401993152 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

74401993152 is an abundant number, since it is smaller than the sum of its proper divisors (144326093648).

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

74401993152 is a wasteful number, since it uses less digits than its factorization.

74401993152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43056730 (or 43056714 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 74401993152 in words is "seventy-four billion, four hundred one million, nine hundred ninety-three thousand, one hundred fifty-two".