74709893280 has 192 divisors, whose sum is σ = 257096706048. Its totient is φ = 18085647360.

The previous prime is 74709893249. The next prime is 74709893317. The reversal of 74709893280 is 8239890747.

It is a self number, because there is not a number n which added to its sum of digits gives 74709893280.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3828829 + ... + 3848291.

It is an arithmetic number, because the mean of its divisors is an integer number (1339045344).

Almost surely, 2^74709893280 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 74709893280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128548353024).

74709893280 is an abundant number, since it is smaller than the sum of its proper divisors (182386812768).

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

74709893280 is a wasteful number, since it uses less digits than its factorization.

74709893280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20219 (or 20211 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 74709893280 in words is "seventy-four billion, seven hundred nine million, eight hundred ninety-three thousand, two hundred eighty".