126912679920 has 240 divisors, whose sum is σ = 486001518912. Its totient is φ = 29402357760.

The previous prime is 126912679877. The next prime is 126912679969. The reversal of 126912679920 is 29976219621.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×126912679920² (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 47 ways as a sum of consecutive naturals, for example, 239676 + ... + 557915.

Almost surely, 2^126912679920 is an apocalyptic number.

126912679920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126912679920 is an abundant number, since it is smaller than the sum of its proper divisors (359088838992).

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

126912679920 is a wasteful number, since it uses less digits than its factorization.

126912679920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797640 (or 797631 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 126912679920 in words is "one hundred twenty-six billion, nine hundred twelve million, six hundred seventy-nine thousand, nine hundred twenty".