126631808984 has 32 divisors (see below), whose sum is σ = 246025866240. Its totient is φ = 61040445600.

The previous prime is 126631808959. The next prime is 126631809011. The reversal of 126631808984 is 489808136621.

It is a happy number.

It is a super-2 number, since 2×126631808984² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905522 + ... + 1035969.

It is an arithmetic number, because the mean of its divisors is an integer number (7688308320).

Almost surely, 2^126631808984 is an apocalyptic number.

It is an amenable number.

126631808984 is a deficient number, since it is larger than the sum of its proper divisors (119394057256).

126631808984 is a wasteful number, since it uses less digits than its factorization.

126631808984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941791 (or 1941787 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 126631808984 in words is "one hundred twenty-six billion, six hundred thirty-one million, eight hundred eight thousand, nine hundred eighty-four".