637679840113 has 8 divisors (see below), whose sum is σ = 658261237760. Its totient is φ = 617099135040.

The previous prime is 637679840041. The next prime is 637679840159. The reversal of 637679840113 is 311048976736.

637679840113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 637679840113 - 2²⁵ = 637646285681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (637679840173) 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, 2225881 + ... + 2495977.

It is an arithmetic number, because the mean of its divisors is an integer number (82282654720).

Almost surely, 2^637679840113 is an apocalyptic number.

It is an amenable number.

637679840113 is a deficient number, since it is larger than the sum of its proper divisors (20581397647).

637679840113 is a wasteful number, since it uses less digits than its factorization.

637679840113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346287.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 637679840113 in words is "six hundred thirty-seven billion, six hundred seventy-nine million, eight hundred forty thousand, one hundred thirteen".