126976169435136 has 112 divisors (see below), whose sum is σ = 386951374009344. Its totient is φ = 36278905503744.

The previous prime is 126976169435123. The next prime is 126976169435231. The reversal of 126976169435136 is 631534961679621.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×126976169435136² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 368876080 + ... + 369220143.

Almost surely, 2^{126976169435136} is an apocalyptic number.

126976169435136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126976169435136 is an abundant number, since it is smaller than the sum of its proper divisors (259975204574208).

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

126976169435136 is an frugal number, since it uses more digits than its factorization.

126976169435136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738096259 (or 738096235 counting only the distinct ones).

The product of its digits is 264539520, while the sum is 69.

The spelling of 126976169435136 in words is "one hundred twenty-six trillion, nine hundred seventy-six billion, one hundred sixty-nine million, four hundred thirty-five thousand, one hundred thirty-six".