74785012225 has 96 divisors (see below), whose sum is σ = 125899084800. Its totient is φ = 42642028800.

The previous prime is 74785012223. The next prime is 74785012241. The reversal of 74785012225 is 52221058747.

It is not a de Polignac number, because 74785012225 - 2¹ = 74785012223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74785012223) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1025422 + ... + 1095928.

It is an arithmetic number, because the mean of its divisors is an integer number (1311448800).

Almost surely, 2^74785012225 is an apocalyptic number.

It is an amenable number.

74785012225 is a deficient number, since it is larger than the sum of its proper divisors (51114072575).

74785012225 is a wasteful number, since it uses less digits than its factorization.

74785012225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70583 (or 70578 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 43.

The spelling of 74785012225 in words is "seventy-four billion, seven hundred eighty-five million, twelve thousand, two hundred twenty-five".