13902839725 has 12 divisors (see below), whose sum is σ = 17705455444. Its totient is φ = 10821669120.

The previous prime is 13902839723. The next prime is 13902839729. The reversal of 13902839725 is 52793820931.

It can be written as a sum of positive squares in 6 ways, for example, as 1710484164 + 12192355561 = 41358^2 + 110419^2 .

It is not a de Polignac number, because 13902839725 - 2¹ = 13902839723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13902839723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7514124 + ... + 7515973.

Almost surely, 2^13902839725 is an apocalyptic number.

It is an amenable number.

13902839725 is a deficient number, since it is larger than the sum of its proper divisors (3802615719).

13902839725 is a wasteful number, since it uses less digits than its factorization.

13902839725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15030144 (or 15030139 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 13902839725 in words is "thirteen billion, nine hundred two million, eight hundred thirty-nine thousand, seven hundred twenty-five".