74923343388 has 144 divisors (see below), whose sum is σ = 197959623680. Its totient is φ = 24777555264.

The previous prime is 74923343371. The next prime is 74923343393. The reversal of 74923343388 is 88334332947.

74923343388 is a `hidden beast` number, since 7 + 492 + 33 + 43 + 3 + 88 = 666.

It is a super-2 number, since 2×74923343388² (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 47 ways as a sum of consecutive naturals, for example, 103057881 + ... + 103058607.

Almost surely, 2^74923343388 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 74923343388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98979811840).

74923343388 is an abundant number, since it is smaller than the sum of its proper divisors (123036280292).

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

74923343388 is a wasteful number, since it uses less digits than its factorization.

74923343388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438 (or 1424 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The spelling of 74923343388 in words is "seventy-four billion, nine hundred twenty-three million, three hundred forty-three thousand, three hundred eighty-eight".