245265408172 has 24 divisors (see below), whose sum is σ = 444705634800. Its totient is φ = 118219811136.

The previous prime is 245265408161. The next prime is 245265408173. The reversal of 245265408172 is 271804562542.

It is not an unprimeable number, because it can be changed into a prime (245265408173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1569547 + ... + 1718722.

It is an arithmetic number, because the mean of its divisors is an integer number (18529401450).

Almost surely, 2^245265408172 is an apocalyptic number.

It is an amenable number.

245265408172 is a deficient number, since it is larger than the sum of its proper divisors (199440226628).

245265408172 is a wasteful number, since it uses less digits than its factorization.

245265408172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288945 (or 3288943 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 46.

The spelling of 245265408172 in words is "two hundred forty-five billion, two hundred sixty-five million, four hundred eight thousand, one hundred seventy-two".