126735673863 has 8 divisors (see below), whose sum is σ = 178920951408. Its totient is φ = 79520422784.

The previous prime is 126735673849. The next prime is 126735673891. The reversal of 126735673863 is 368376537621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126735673863 - 2³⁴ = 109555804679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126735673843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242506556 + ... + 1242506657.

It is an arithmetic number, because the mean of its divisors is an integer number (22365118926).

Almost surely, 2^126735673863 is an apocalyptic number.

126735673863 is a deficient number, since it is larger than the sum of its proper divisors (52185277545).

126735673863 is a wasteful number, since it uses less digits than its factorization.

126735673863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485013233.

The product of its digits is 22861440, while the sum is 57.

The spelling of 126735673863 in words is "one hundred twenty-six billion, seven hundred thirty-five million, six hundred seventy-three thousand, eight hundred sixty-three".