100637250449 has 2 divisors, whose sum is σ = 100637250450. Its totient is φ = 100637250448.

The previous prime is 100637250401. The next prime is 100637250509. The reversal of 100637250449 is 944052736001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84947182849 + 15690067600 = 291457^2 + 125260^2 .

It is a cyclic number.

It is not a de Polignac number, because 100637250449 - 2²⁰ = 100636201873 is a prime.

It is not a weakly prime, because it can be changed into another prime (100637250149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50318625224 + 50318625225.

It is an arithmetic number, because the mean of its divisors is an integer number (50318625225).

Almost surely, 2^100637250449 is an apocalyptic number.

It is an amenable number.

100637250449 is a deficient number, since it is larger than the sum of its proper divisors (1).

100637250449 is an equidigital number, since it uses as much as digits as its factorization.

100637250449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 100637250449 in words is "one hundred billion, six hundred thirty-seven million, two hundred fifty thousand, four hundred forty-nine".