2539663437 has 16 divisors (see below), whose sum is σ = 3554703360. Its totient is φ = 1610718000.

The previous prime is 2539663433. The next prime is 2539663457. The reversal of 2539663437 is 7343669352.

It is not a de Polignac number, because 2539663437 - 2² = 2539663433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539663433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225939 + ... + 236912.

It is an arithmetic number, because the mean of its divisors is an integer number (222168960).

Almost surely, 2^2539663437 is an apocalyptic number.

It is an amenable number.

2539663437 is a deficient number, since it is larger than the sum of its proper divisors (1015039923).

2539663437 is a wasteful number, since it uses less digits than its factorization.

2539663437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462944.

The product of its digits is 2449440, while the sum is 48.

The square root of 2539663437 is about 50395.0735389879. The cubic root of 2539663437 is about 1364.3487233759.

It can be divided in two parts, 253966 and 3437, that added together give a triangular number (257403 = T₇₁₇).

The spelling of 2539663437 in words is "two billion, five hundred thirty-nine million, six hundred sixty-three thousand, four hundred thirty-seven".