126438722774 has 32 divisors (see below), whose sum is σ = 233455978560. Its totient is φ = 50013148032.

The previous prime is 126438722717. The next prime is 126438722789. The reversal of 126438722774 is 477227834621.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1485392 + ... + 1568204.

It is an arithmetic number, because the mean of its divisors is an integer number (7295499330).

Almost surely, 2^126438722774 is an apocalyptic number.

126438722774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

126438722774 is a deficient number, since it is larger than the sum of its proper divisors (107017255786).

126438722774 is a wasteful number, since it uses less digits than its factorization.

126438722774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91224.

The product of its digits is 6322176, while the sum is 53.

The spelling of 126438722774 in words is "one hundred twenty-six billion, four hundred thirty-eight million, seven hundred twenty-two thousand, seven hundred seventy-four".