126460412721 has 12 divisors (see below), whose sum is σ = 182685825972. Its totient is φ = 84297348576.

The previous prime is 126460412717. The next prime is 126460412731. The reversal of 126460412721 is 127214064621.

126460412721 is a `hidden beast` number, since 1 + 2 + 6 + 4 + 604 + 1 + 27 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 83269182096 + 43191230625 = 288564^2 + 207825^2 .

It is not a de Polignac number, because 126460412721 - 2² = 126460412717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126460412731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 715486 + ... + 874551.

It is an arithmetic number, because the mean of its divisors is an integer number (15223818831).

Almost surely, 2^126460412721 is an apocalyptic number.

It is an amenable number.

126460412721 is a deficient number, since it is larger than the sum of its proper divisors (56225413251).

126460412721 is a wasteful number, since it uses less digits than its factorization.

126460412721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598880 (or 1598877 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 126460412721 in words is "one hundred twenty-six billion, four hundred sixty million, four hundred twelve thousand, seven hundred twenty-one".