126713177731 has 12 divisors (see below), whose sum is σ = 153809785872. Its totient is φ = 103889064048.

The previous prime is 126713177719. The next prime is 126713177791. The reversal of 126713177731 is 137771317621.

It is not a de Polignac number, because 126713177731 - 2⁷ = 126713177603 is a prime.

It is a super-2 number, since 2×126713177731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126713177791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56215900 + ... + 56218153.

It is an arithmetic number, because the mean of its divisors is an integer number (12817482156).

Almost surely, 2^126713177731 is an apocalyptic number.

126713177731 is a deficient number, since it is larger than the sum of its proper divisors (27096608141).

126713177731 is a wasteful number, since it uses less digits than its factorization.

126713177731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112434090 (or 112434083 counting only the distinct ones).

The product of its digits is 259308, while the sum is 46.

The spelling of 126713177731 in words is "one hundred twenty-six billion, seven hundred thirteen million, one hundred seventy-seven thousand, seven hundred thirty-one".