126257108757 has 16 divisors (see below), whose sum is σ = 185714023488. Its totient is φ = 75801640320.

The previous prime is 126257108741. The next prime is 126257108771. The reversal of 126257108757 is 757801752621.

It is not a de Polignac number, because 126257108757 - 2⁴ = 126257108741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126257148757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39478423 + ... + 39481620.

It is an arithmetic number, because the mean of its divisors is an integer number (11607126468).

Almost surely, 2^126257108757 is an apocalyptic number.

It is an amenable number.

126257108757 is a deficient number, since it is larger than the sum of its proper divisors (59456914731).

126257108757 is a wasteful number, since it uses less digits than its factorization.

126257108757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78960100.

The product of its (nonzero) digits is 1646400, while the sum is 51.

The spelling of 126257108757 in words is "one hundred twenty-six billion, two hundred fifty-seven million, one hundred eight thousand, seven hundred fifty-seven".