74018991600 has 180 divisors, whose sum is σ = 270385999000. Its totient is φ = 18699517440.

The previous prime is 74018991583. The next prime is 74018991601. The reversal of 74018991600 is 619981047.

It is a happy number.

74018991600 is a `hidden beast` number, since 7 + 401 + 89 + 9 + 160 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is a super-2 number, since 2×74018991600² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74018991601) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 472675 + ... + 609474.

Almost surely, 2^74018991600 is an apocalyptic number.

It is an amenable number.

74018991600 is an abundant number, since it is smaller than the sum of its proper divisors (196367007400).

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

74018991600 is a wasteful number, since it uses less digits than its factorization.

74018991600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082192 (or 1082178 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 74018991600 in words is "seventy-four billion, eighteen million, nine hundred ninety-one thousand, six hundred".