126662691788 has 24 divisors (see below), whose sum is σ = 231314807808. Its totient is φ = 60573168656.

The previous prime is 126662691763. The next prime is 126662691823. The reversal of 126662691788 is 887196266621.

126662691788 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 126662691788.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1359095 + ... + 1449297.

It is an arithmetic number, because the mean of its divisors is an integer number (9638116992).

Almost surely, 2^126662691788 is an apocalyptic number.

It is an amenable number.

126662691788 is a deficient number, since it is larger than the sum of its proper divisors (104652116020).

126662691788 is a wasteful number, since it uses less digits than its factorization.

126662691788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105493 (or 105491 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 62.

The spelling of 126662691788 in words is "one hundred twenty-six billion, six hundred sixty-two million, six hundred ninety-one thousand, seven hundred eighty-eight".