19971683710 has 16 divisors (see below), whose sum is σ = 39217124592. Its totient is φ = 7262430400.

The previous prime is 19971683701. The next prime is 19971683741. The reversal of 19971683710 is 1738617991.

It is a congruent number.

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, 90780271 + ... + 90780490.

It is an arithmetic number, because the mean of its divisors is an integer number (2451070287).

Almost surely, 2^19971683710 is an apocalyptic number.

19971683710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19971683710 is a deficient number, since it is larger than the sum of its proper divisors (19245440882).

19971683710 is a wasteful number, since it uses less digits than its factorization.

19971683710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181560779.

The product of its (nonzero) digits is 571536, while the sum is 52.

The spelling of 19971683710 in words is "nineteen billion, nine hundred seventy-one million, six hundred eighty-three thousand, seven hundred ten".