19935966274 has 16 divisors (see below), whose sum is σ = 34425404928. Its totient is φ = 8481619872.

The previous prime is 19935966251. The next prime is 19935966311. The reversal of 19935966274 is 47266953991.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5195154 + ... + 5198989.

It is an arithmetic number, because the mean of its divisors is an integer number (2151587808).

Almost surely, 2^19935966274 is an apocalyptic number.

19935966274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19935966274 is a deficient number, since it is larger than the sum of its proper divisors (14489438654).

19935966274 is a wasteful number, since it uses less digits than its factorization.

19935966274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10394289.

The product of its digits is 22044960, while the sum is 61.

The spelling of 19935966274 in words is "nineteen billion, nine hundred thirty-five million, nine hundred sixty-six thousand, two hundred seventy-four".