74753694720 has 880 divisors, whose sum is σ = 296606173248. Its totient is φ = 17907056640.

The previous prime is 74753694707. The next prime is 74753694761. The reversal of 74753694720 is 2749635747.

74753694720 is a `hidden beast` number, since 7 + 47 + 536 + 9 + 47 + 20 = 666.

It is a super-2 number, since 2×74753694720² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 162155290 + ... + 162155750.

Almost surely, 2^74753694720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74753694720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148303086624).

74753694720 is an abundant number, since it is smaller than the sum of its proper divisors (221852478528).

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

74753694720 is a wasteful number, since it uses less digits than its factorization.

74753694720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 54.

The spelling of 74753694720 in words is "seventy-four billion, seven hundred fifty-three million, six hundred ninety-four thousand, seven hundred twenty".