126799977296 has 20 divisors (see below), whose sum is σ = 247928858100. Its totient is φ = 62818336512.

The previous prime is 126799977287. The next prime is 126799977301. The reversal of 126799977296 is 692779997621.

It can be written as a sum of positive squares in 2 ways, for example, as 43278977296 + 83521000000 = 208036^2 + 289000^2 .

It is a super-2 number, since 2×126799977296² (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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36351461 + ... + 36354948.

It is an arithmetic number, because the mean of its divisors is an integer number (12396442905).

Almost surely, 2^126799977296 is an apocalyptic number.

126799977296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126799977296 is a deficient number, since it is larger than the sum of its proper divisors (121128880804).

126799977296 is a wasteful number, since it uses less digits than its factorization.

126799977296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72706526 (or 72706520 counting only the distinct ones).

The product of its digits is 324060912, while the sum is 74.

The spelling of 126799977296 in words is "one hundred twenty-six billion, seven hundred ninety-nine million, nine hundred seventy-seven thousand, two hundred ninety-six".