74944623624 has 256 divisors, whose sum is σ = 223859220480. Its totient is φ = 20686786560.

The previous prime is 74944623617. The next prime is 74944623679. The reversal of 74944623624 is 42632644947.

It is a super-2 number, since 2×74944623624² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) 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 (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11013007 + ... + 11019809.

It is an arithmetic number, because the mean of its divisors is an integer number (874450080).

Almost surely, 2^74944623624 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 74944623624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111929610240).

74944623624 is an abundant number, since it is smaller than the sum of its proper divisors (148914596856).

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

74944623624 is a wasteful number, since it uses less digits than its factorization.

74944623624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6940 (or 6936 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 51.

The spelling of 74944623624 in words is "seventy-four billion, nine hundred forty-four million, six hundred twenty-three thousand, six hundred twenty-four".