74512230912 has 640 divisors, whose sum is σ = 265240166400. Its totient is φ = 20205158400.

The previous prime is 74512230847. The next prime is 74512231051. The reversal of 74512230912 is 21903221547.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 176988462 + ... + 176988882.

It is an arithmetic number, because the mean of its divisors is an integer number (414437760).

Almost surely, 2^74512230912 is an apocalyptic number.

74512230912 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 74512230912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132620083200).

74512230912 is an abundant number, since it is smaller than the sum of its proper divisors (190727935488).

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

74512230912 is a wasteful number, since it uses less digits than its factorization.

74512230912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 74512230912 in words is "seventy-four billion, five hundred twelve million, two hundred thirty thousand, nine hundred twelve".