74879969280 has 384 divisors, whose sum is σ = 251533900800. Its totient is φ = 18992332800.

The previous prime is 74879969237. The next prime is 74879969291. The reversal of 74879969280 is 8296997847.

It is a tau number, because it is divible by the number of its divisors (384).

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, 58090876 + ... + 58092164.

It is an arithmetic number, because the mean of its divisors is an integer number (655036200).

Almost surely, 2^74879969280 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 74879969280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125766950400).

74879969280 is an abundant number, since it is smaller than the sum of its proper divisors (176653931520).

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

74879969280 is a wasteful number, since it uses less digits than its factorization.

74879969280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 69.

The spelling of 74879969280 in words is "seventy-four billion, eight hundred seventy-nine million, nine hundred sixty-nine thousand, two hundred eighty".