126981793352 has 36 divisors (see below), whose sum is σ = 252954183465. Its totient is φ = 59748074880.

The previous prime is 126981793319. The next prime is 126981793361. The reversal of 126981793352 is 253397189621.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 116216900836 + 10764892516 = 340906^2 + 103754^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=251974.

It is a super-2 number, since 2×126981793352² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17130527 + ... + 17137937.

Almost surely, 2^126981793352 is an apocalyptic number.

It is an amenable number.

126981793352 is a deficient number, since it is larger than the sum of its proper divisors (125972390113).

126981793352 is an frugal number, since it uses more digits than its factorization.

126981793352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14862 (or 7430 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 56.

The spelling of 126981793352 in words is "one hundred twenty-six billion, nine hundred eighty-one million, seven hundred ninety-three thousand, three hundred fifty-two".