126388685675 has 24 divisors (see below), whose sum is σ = 179295524352. Its totient is φ = 86577156000.

The previous prime is 126388685623. The next prime is 126388685693. The reversal of 126388685675 is 576586883621.

It is not a de Polignac number, because 126388685675 - 2¹⁰ = 126388684651 is a prime.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201971 + ... + 541820.

It is an arithmetic number, because the mean of its divisors is an integer number (7470646848).

Almost surely, 2^126388685675 is an apocalyptic number.

126388685675 is a deficient number, since it is larger than the sum of its proper divisors (52906838677).

126388685675 is an equidigital number, since it uses as much as digits as its factorization.

126388685675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744779 (or 744774 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 65.

The spelling of 126388685675 in words is "one hundred twenty-six billion, three hundred eighty-eight million, six hundred eighty-five thousand, six hundred seventy-five".