126604453631 has 2 divisors, whose sum is σ = 126604453632. Its totient is φ = 126604453630.

The previous prime is 126604453627. The next prime is 126604453663. The reversal of 126604453631 is 136354406621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126604453631 - 2² = 126604453627 is a prime.

It is a super-2 number, since 2×126604453631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126604453691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63302226815 + 63302226816.

It is an arithmetic number, because the mean of its divisors is an integer number (63302226816).

Almost surely, 2^126604453631 is an apocalyptic number.

126604453631 is a deficient number, since it is larger than the sum of its proper divisors (1).

126604453631 is an equidigital number, since it uses as much as digits as its factorization.

126604453631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 126604453631 in words is "one hundred twenty-six billion, six hundred four million, four hundred fifty-three thousand, six hundred thirty-one".