19697772822 has 32 divisors (see below), whose sum is σ = 48486826752. Its totient is φ = 5195016864.

The previous prime is 19697772767. The next prime is 19697772833. The reversal of 19697772822 is 22827779691.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 18037708 + ... + 18038799.

It is an arithmetic number, because the mean of its divisors is an integer number (1515213336).

Almost surely, 2^19697772822 is an apocalyptic number.

19697772822 is an abundant number, since it is smaller than the sum of its proper divisors (28789053930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19697772822 is a wasteful number, since it uses less digits than its factorization.

19697772822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36076532.

The product of its digits is 10668672, while the sum is 60.

The spelling of 19697772822 in words is "nineteen billion, six hundred ninety-seven million, seven hundred seventy-two thousand, eight hundred twenty-two".