2539253802120 has 128 divisors (see below), whose sum is σ = 8733477715200. Its totient is φ = 578569890816.

The previous prime is 2539253802109. The next prime is 2539253802161. The reversal of 2539253802120 is 212083529352.

It is a happy number.

It is a super-2 number, since 2×2539253802120² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 4501735 + ... + 5034294.

It is an arithmetic number, because the mean of its divisors is an integer number (68230294650).

Almost surely, 2^{2539253802120} is an apocalyptic number.

2539253802120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2539253802120 is an abundant number, since it is smaller than the sum of its proper divisors (6194223913080).

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

2539253802120 is a wasteful number, since it uses less digits than its factorization.

2539253802120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9536367 (or 9536363 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 2539253802120 in words is "two trillion, five hundred thirty-nine billion, two hundred fifty-three million, eight hundred two thousand, one hundred twenty".