126736992722 has 18 divisors (see below), whose sum is σ = 200652793893. Its totient is φ = 60028781184.

The previous prime is 126736992719. The next prime is 126736992727. The reversal of 126736992722 is 227299637621.

It can be written as a sum of positive squares in 2 ways, for example, as 118934627161 + 7802365561 = 344869^2 + 88331^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=251731.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126736992727) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9559154 + ... + 9572402.

Almost surely, 2^126736992722 is an apocalyptic number.

126736992722 is a deficient number, since it is larger than the sum of its proper divisors (73915801171).

126736992722 is an frugal number, since it uses more digits than its factorization.

126736992722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26538 (or 13270 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 56.

The spelling of 126736992722 in words is "one hundred twenty-six billion, seven hundred thirty-six million, nine hundred ninety-two thousand, seven hundred twenty-two".