126318657612 has 54 divisors (see below), whose sum is σ = 342888321972. Its totient is φ = 36088582656.

The previous prime is 126318657599. The next prime is 126318657613. The reversal of 126318657612 is 216756813621.

It is not an unprimeable number, because it can be changed into a prime (126318657613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8610988 + ... + 8625644.

Almost surely, 2^126318657612 is an apocalyptic number.

126318657612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126318657612 is an abundant number, since it is smaller than the sum of its proper divisors (216569664360).

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

126318657612 is an frugal number, since it uses more digits than its factorization.

126318657612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29335 (or 14669 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

Multiplying 126318657612 by its sum of digits (48), we get a square (6063295565376 = 2462376²).

The spelling of 126318657612 in words is "one hundred twenty-six billion, three hundred eighteen million, six hundred fifty-seven thousand, six hundred twelve".