74785584225 has 96 divisors (see below), whose sum is σ = 137466201600. Its totient is φ = 35568755200.

The previous prime is 74785584113. The next prime is 74785584233. The reversal of 74785584225 is 52248558747.

It is not a de Polignac number, because 74785584225 - 2⁹ = 74785583713 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27402661 + ... + 27405389.

It is an arithmetic number, because the mean of its divisors is an integer number (1431939600).

Almost surely, 2^74785584225 is an apocalyptic number.

74785584225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

74785584225 is a deficient number, since it is larger than the sum of its proper divisors (62680617375).

74785584225 is a wasteful number, since it uses less digits than its factorization.

74785584225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375 (or 3370 counting only the distinct ones).

The product of its digits is 25088000, while the sum is 57.

The spelling of 74785584225 in words is "seventy-four billion, seven hundred eighty-five million, five hundred eighty-four thousand, two hundred twenty-five".