126319437631 has 8 divisors (see below), whose sum is σ = 126581212224. Its totient is φ = 126057768480.

The previous prime is 126319437619. The next prime is 126319437637. The reversal of 126319437631 is 136734913621.

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 126319437631 - 2³⁵ = 91959699263 is a prime.

It is a super-2 number, since 2×126319437631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126319437637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2650545 + ... + 2697781.

It is an arithmetic number, because the mean of its divisors is an integer number (15822651528).

Almost surely, 2^126319437631 is an apocalyptic number.

126319437631 is a deficient number, since it is larger than the sum of its proper divisors (261774593).

126319437631 is an equidigital number, since it uses as much as digits as its factorization.

126319437631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52721.

The product of its digits is 489888, while the sum is 46.

The spelling of 126319437631 in words is "one hundred twenty-six billion, three hundred nineteen million, four hundred thirty-seven thousand, six hundred thirty-one".