126001399679 has 16 divisors (see below), whose sum is σ = 130680000000. Its totient is φ = 121345442400.

The previous prime is 126001399673. The next prime is 126001399709. The reversal of 126001399679 is 976993100621.

It is a happy number.

It is not a de Polignac number, because 126001399679 - 2⁸ = 126001399423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126001399679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126001399673) 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, 25202822 + ... + 25207820.

It is an arithmetic number, because the mean of its divisors is an integer number (8167500000).

Almost surely, 2^126001399679 is an apocalyptic number.

126001399679 is a deficient number, since it is larger than the sum of its proper divisors (4678600321).

126001399679 is a wasteful number, since it uses less digits than its factorization.

126001399679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7078.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The spelling of 126001399679 in words is "one hundred twenty-six billion, one million, three hundred ninety-nine thousand, six hundred seventy-nine".