126972532798 has 32 divisors (see below), whose sum is σ = 196286587200. Its totient is φ = 61573913856.

The previous prime is 126972532787. The next prime is 126972532847. The reversal of 126972532798 is 897235279621.

It is a super-2 number, since 2×126972532798² (a number of 23 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5059690 + ... + 5084722.

It is an arithmetic number, because the mean of its divisors is an integer number (6133955850).

Almost surely, 2^126972532798 is an apocalyptic number.

126972532798 is a deficient number, since it is larger than the sum of its proper divisors (69314054402).

126972532798 is a wasteful number, since it uses less digits than its factorization.

126972532798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25636.

The product of its digits is 22861440, while the sum is 61.

The spelling of 126972532798 in words is "one hundred twenty-six billion, nine hundred seventy-two million, five hundred thirty-two thousand, seven hundred ninety-eight".