49636638751 has 8 divisors (see below), whose sum is σ = 57055493664. Its totient is φ = 42299760480.

The previous prime is 49636638739. The next prime is 49636638761. The reversal of 49636638751 is 15783663694.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49636638751 - 2⁵ = 49636638719 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 (49636638761) 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, 20492860 + ... + 20495281.

It is an arithmetic number, because the mean of its divisors is an integer number (7131936708).

Almost surely, 2^49636638751 is an apocalyptic number.

49636638751 is a deficient number, since it is larger than the sum of its proper divisors (7418854913).

49636638751 is a wasteful number, since it uses less digits than its factorization.

49636638751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40988321.

The product of its digits is 19595520, while the sum is 58.

The spelling of 49636638751 in words is "forty-nine billion, six hundred thirty-six million, six hundred thirty-eight thousand, seven hundred fifty-one".