2501630136638 has 16 divisors (see below), whose sum is σ = 3755249709120. Its totient is φ = 1249880582016.

The previous prime is 2501630136637. The next prime is 2501630136647. The reversal of 2501630136638 is 8366310361052.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501630136637) 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, 14743370 + ... + 14912082.

It is an arithmetic number, because the mean of its divisors is an integer number (234703106820).

Almost surely, 2^{2501630136638} is an apocalyptic number.

2501630136638 is a deficient number, since it is larger than the sum of its proper divisors (1253619572482).

2501630136638 is a wasteful number, since it uses less digits than its factorization.

2501630136638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174211.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 2501630136638 in words is "two trillion, five hundred one billion, six hundred thirty million, one hundred thirty-six thousand, six hundred thirty-eight".