126271896897 has 16 divisors (see below), whose sum is σ = 178677938880. Its totient is φ = 79046433792.

The previous prime is 126271896799. The next prime is 126271896923. The reversal of 126271896897 is 798698172621.

It is not a de Polignac number, because 126271896897 - 2⁷ = 126271896769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126271896197) 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, 2836947 + ... + 2881112.

It is an arithmetic number, because the mean of its divisors is an integer number (11167371180).

Almost surely, 2^126271896897 is an apocalyptic number.

126271896897 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

126271896897 is a deficient number, since it is larger than the sum of its proper divisors (52406041983).

126271896897 is a wasteful number, since it uses less digits than its factorization.

126271896897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718512.

The product of its digits is 36578304, while the sum is 66.

The spelling of 126271896897 in words is "one hundred twenty-six billion, two hundred seventy-one million, eight hundred ninety-six thousand, eight hundred ninety-seven".