74500860672 has 378 divisors, whose sum is σ = 259398188028. Its totient is φ = 21283347456.

The previous prime is 74500860667. The next prime is 74500860677. The reversal of 74500860672 is 27606800547.

74500860672 is a `hidden beast` number, since 7 + 4 + 500 + 86 + 0 + 67 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (74500860667) and next prime (74500860677).

It is a tau number, because it is divible by the number of its divisors (378).

It is not an unprimeable number, because it can be changed into a prime (74500860677) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 9140503 + ... + 9148649.

Almost surely, 2^74500860672 is an apocalyptic number.

74500860672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74500860672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129699094014).

74500860672 is an abundant number, since it is smaller than the sum of its proper divisors (184897327356).

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

74500860672 is an frugal number, since it uses more digits than its factorization.

74500860672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8195 (or 8159 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 74500860672 in words is "seventy-four billion, five hundred million, eight hundred sixty thousand, six hundred seventy-two".