74451322368 has 400 divisors, whose sum is σ = 234751983840. Its totient is φ = 23444619264.

The previous prime is 74451322327. The next prime is 74451322373. The reversal of 74451322368 is 86322315447.

74451322368 is a `hidden beast` number, since 74 + 4 + 513 + 2 + 2 + 3 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 84892746 + ... + 84893622.

Almost surely, 2^74451322368 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 74451322368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117375991920).

74451322368 is an abundant number, since it is smaller than the sum of its proper divisors (160300661472).

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

74451322368 is an equidigital number, since it uses as much as digits as its factorization.

74451322368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019 (or 994 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The spelling of 74451322368 in words is "seventy-four billion, four hundred fifty-one million, three hundred twenty-two thousand, three hundred sixty-eight".