19938192676 has 6 divisors (see below), whose sum is σ = 34891837190. Its totient is φ = 9969096336.

The previous prime is 19938192667. The next prime is 19938192709. The reversal of 19938192676 is 67629183991.

It can be written as a sum of positive squares in only one way, i.e., 17949032676 + 1989160000 = 133974^2 + 44600^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2492274081 + ... + 2492274088.

Almost surely, 2^19938192676 is an apocalyptic number.

It is an amenable number.

19938192676 is a deficient number, since it is larger than the sum of its proper divisors (14953644514).

19938192676 is a wasteful number, since it uses less digits than its factorization.

19938192676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4984548173 (or 4984548171 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 61.

The spelling of 19938192676 in words is "nineteen billion, nine hundred thirty-eight million, one hundred ninety-two thousand, six hundred seventy-six".