126677476978 has 32 divisors (see below), whose sum is σ = 212127781824. Its totient is φ = 56354657472.

The previous prime is 126677476973. The next prime is 126677476999. The reversal of 126677476978 is 879674776621.

126677476978 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (126677476973) 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, 512400 + ... + 718267.

It is an arithmetic number, because the mean of its divisors is an integer number (6628993182).

Almost surely, 2^126677476978 is an apocalyptic number.

126677476978 is a deficient number, since it is larger than the sum of its proper divisors (85450304846).

126677476978 is a wasteful number, since it uses less digits than its factorization.

126677476978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230826.

The product of its digits is 298722816, while the sum is 70.

The spelling of 126677476978 in words is "one hundred twenty-six billion, six hundred seventy-seven million, four hundred seventy-six thousand, nine hundred seventy-eight".