74887992031824 has 240 divisors, whose sum is σ = 235026042870528. Its totient is φ = 22994392928256.

The previous prime is 74887992031691. The next prime is 74887992031829. The reversal of 74887992031824 is 42813029978847.

74887992031824 is a `hidden beast` number, since 7 + 488 + 7 + 9 + 92 + 0 + 31 + 8 + 24 = 666.

It is a super-2 number, since 2×74887992031824² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74887992031829) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8946877 + ... + 15159900.

Almost surely, 2^{74887992031824} is an apocalyptic number.

It is an amenable number.

74887992031824 is an abundant number, since it is smaller than the sum of its proper divisors (160138050838704).

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

74887992031824 is a wasteful number, since it uses less digits than its factorization.

74887992031824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24106864 (or 24106846 counting only the distinct ones).

The product of its (nonzero) digits is 390168576, while the sum is 72.

The spelling of 74887992031824 in words is "seventy-four trillion, eight hundred eighty-seven billion, nine hundred ninety-two million, thirty-one thousand, eight hundred twenty-four".