126586982721 has 16 divisors (see below), whose sum is σ = 169545207744. Its totient is φ = 84010450944.

The previous prime is 126586982693. The next prime is 126586982729. The reversal of 126586982721 is 127289685621.

It is not a de Polignac number, because 126586982721 - 2¹³ = 126586974529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126586982729) 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, 1203961 + ... + 1304873.

It is an arithmetic number, because the mean of its divisors is an integer number (10596575484).

Almost surely, 2^126586982721 is an apocalyptic number.

It is an amenable number.

126586982721 is a deficient number, since it is larger than the sum of its proper divisors (42958225023).

126586982721 is a wasteful number, since it uses less digits than its factorization.

126586982721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102800.

The product of its digits is 5806080, while the sum is 57.

The spelling of 126586982721 in words is "one hundred twenty-six billion, five hundred eighty-six million, nine hundred eighty-two thousand, seven hundred twenty-one".