126271870791 has 32 divisors (see below), whose sum is σ = 184203936000. Its totient is φ = 76305434880.

The previous prime is 126271870783. The next prime is 126271870793. The reversal of 126271870791 is 197078172621.

It is not a de Polignac number, because 126271870791 - 2³ = 126271870783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126271870793) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31653025 + ... + 31657013.

It is an arithmetic number, because the mean of its divisors is an integer number (5756373000).

Almost surely, 2^126271870791 is an apocalyptic number.

126271870791 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

126271870791 is a deficient number, since it is larger than the sum of its proper divisors (57932065209).

126271870791 is a wasteful number, since it uses less digits than its factorization.

126271870791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6559.

The product of its (nonzero) digits is 592704, while the sum is 51.

The spelling of 126271870791 in words is "one hundred twenty-six billion, two hundred seventy-one million, eight hundred seventy thousand, seven hundred ninety-one".