100044642637 has 2 divisors, whose sum is σ = 100044642638. Its totient is φ = 100044642636.

The previous prime is 100044642601. The next prime is 100044642667. The reversal of 100044642637 is 736246440001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80205638436 + 19839004201 = 283206^2 + 140851^2 .

It is a cyclic number.

It is not a de Polignac number, because 100044642637 - 2¹¹ = 100044640589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100044642596 and 100044642605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100044642667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50022321318 + 50022321319.

It is an arithmetic number, because the mean of its divisors is an integer number (50022321319).

Almost surely, 2^100044642637 is an apocalyptic number.

It is an amenable number.

100044642637 is a deficient number, since it is larger than the sum of its proper divisors (1).

100044642637 is an equidigital number, since it uses as much as digits as its factorization.

100044642637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 100044642637 in words is "one hundred billion, forty-four million, six hundred forty-two thousand, six hundred thirty-seven".