2501630136636 has 24 divisors (see below), whose sum is σ = 5843148482304. Its totient is φ = 833017926960.

The previous prime is 2501630136601. The next prime is 2501630136637. The reversal of 2501630136636 is 6366310361052.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107336020 + ... + 107359323.

It is an arithmetic number, because the mean of its divisors is an integer number (243464520096).

Almost surely, 2^{2501630136636} is an apocalyptic number.

It is an amenable number.

2501630136636 is an abundant number, since it is smaller than the sum of its proper divisors (3341518345668).

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

2501630136636 is a wasteful number, since it uses less digits than its factorization.

2501630136636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214696321 (or 214696319 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 42.

Adding to 2501630136636 its reverse (6366310361052), we get a palindrome (8867940497688).

The spelling of 2501630136636 in words is "two trillion, five hundred one billion, six hundred thirty million, one hundred thirty-six thousand, six hundred thirty-six".