2636631426550 has 24 divisors (see below), whose sum is σ = 5349964859352. Its totient is φ = 958775064000.

The previous prime is 2636631426523. The next prime is 2636631426551. The reversal of 2636631426550 is 556241366362.

It is a junction number, because it is equal to n+sod(n) for n = 2636631426494 and 2636631426503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2636631426551) 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, 2396937111 + ... + 2396938210.

It is an arithmetic number, because the mean of its divisors is an integer number (222915202473).

Almost surely, 2^{2636631426550} is an apocalyptic number.

2636631426550 is an abundant number, since it is smaller than the sum of its proper divisors (2713333432802).

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

2636631426550 is a wasteful number, since it uses less digits than its factorization.

2636631426550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793875344 (or 4793875339 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 2636631426550 in words is "two trillion, six hundred thirty-six billion, six hundred thirty-one million, four hundred twenty-six thousand, five hundred fifty".