74864420624280 has 256 divisors, whose sum is σ = 257642603642880. Its totient is φ = 17047663939584.

The previous prime is 74864420624267. The next prime is 74864420624359. The reversal of 74864420624280 is 8242602446847.

It is a self number, because there is not a number n which added to its sum of digits gives 74864420624280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 282015772 + ... + 282281108.

It is an arithmetic number, because the mean of its divisors is an integer number (1006416420480).

Almost surely, 2^{74864420624280} is an apocalyptic number.

74864420624280 is a gapful number since it is divisible by the number (70) 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 74864420624280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128821301821440).

74864420624280 is an abundant number, since it is smaller than the sum of its proper divisors (182778183018600).

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

74864420624280 is a wasteful number, since it uses less digits than its factorization.

74864420624280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266618 (or 266614 counting only the distinct ones).

The product of its (nonzero) digits is 33030144, while the sum is 57.

The spelling of 74864420624280 in words is "seventy-four trillion, eight hundred sixty-four billion, four hundred twenty million, six hundred twenty-four thousand, two hundred eighty".