42923443186 has 32 divisors (see below), whose sum is σ = 70109767728. Its totient is φ = 19590758400.

The previous prime is 42923443177. The next prime is 42923443193. The reversal of 42923443186 is 68134432924.

It can be written as a sum of positive squares in 8 ways, for example, as 22191762961 + 20731680225 = 148969^2 + 143985^2 .

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, 2240946 + ... + 2260018.

Almost surely, 2^42923443186 is an apocalyptic number.

42923443186 is a deficient number, since it is larger than the sum of its proper divisors (27186324542).

42923443186 is a wasteful number, since it uses less digits than its factorization.

42923443186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20046.

The product of its digits is 995328, while the sum is 46.

The spelling of 42923443186 in words is "forty-two billion, nine hundred twenty-three million, four hundred forty-three thousand, one hundred eighty-six".