126511830672 has 20 divisors (see below), whose sum is σ = 326822229360. Its totient is φ = 42170610208.

The previous prime is 126511830659. The next prime is 126511830701. The reversal of 126511830672 is 276038115621.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317831522 + ... + 1317831617.

It is an arithmetic number, because the mean of its divisors is an integer number (16341111468).

Almost surely, 2^126511830672 is an apocalyptic number.

126511830672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126511830672 is an abundant number, since it is smaller than the sum of its proper divisors (200310398688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126511830672 is a wasteful number, since it uses less digits than its factorization.

126511830672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635663150 (or 2635663144 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 126511830672 in words is "one hundred twenty-six billion, five hundred eleven million, eight hundred thirty thousand, six hundred seventy-two".