126988848722 has 18 divisors (see below), whose sum is σ = 197300864943. Its totient is φ = 61297905984.

The previous prime is 126988848683. The next prime is 126988848731. The reversal of 126988848722 is 227848889621.

It can be written as a sum of positive squares in 5 ways, for example, as 115980432481 + 11008416241 = 340559^2 + 104921^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=251981.

It is a super-2 number, since 2×126988848722² (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, 14610554 + ... + 14619242.

Almost surely, 2^126988848722 is an apocalyptic number.

126988848722 is a deficient number, since it is larger than the sum of its proper divisors (70312016221).

126988848722 is an frugal number, since it uses more digits than its factorization.

126988848722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17438 (or 8720 counting only the distinct ones).

The product of its digits is 49545216, while the sum is 65.

The spelling of 126988848722 in words is "one hundred twenty-six billion, nine hundred eighty-eight million, eight hundred forty-eight thousand, seven hundred twenty-two".