74894552780 has 12 divisors (see below), whose sum is σ = 157278560880. Its totient is φ = 29957821104.

The previous prime is 74894552771. The next prime is 74894552857. The reversal of 74894552780 is 8725549847.

It is a super-2 number, since 2×74894552780² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1872363800 + ... + 1872363839.

It is an arithmetic number, because the mean of its divisors is an integer number (13106546740).

Almost surely, 2^74894552780 is an apocalyptic number.

It is an amenable number.

74894552780 is an abundant number, since it is smaller than the sum of its proper divisors (82384008100).

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

74894552780 is a wasteful number, since it uses less digits than its factorization.

74894552780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3744727648 (or 3744727646 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 59.

The spelling of 74894552780 in words is "seventy-four billion, eight hundred ninety-four million, five hundred fifty-two thousand, seven hundred eighty".