19992953799 has 48 divisors (see below), whose sum is σ = 35557704000. Its totient is φ = 10541380608.

The previous prime is 19992953797. The next prime is 19992953837. The reversal of 19992953799 is 99735929991.

It is not a de Polignac number, because 19992953799 - 2¹ = 19992953797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19992953797) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3313117 + ... + 3319145.

It is an arithmetic number, because the mean of its divisors is an integer number (740785500).

Almost surely, 2^19992953799 is an apocalyptic number.

19992953799 is a deficient number, since it is larger than the sum of its proper divisors (15564750201).

19992953799 is a wasteful number, since it uses less digits than its factorization.

19992953799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10104 (or 10101 counting only the distinct ones).

The product of its digits is 111602610, while the sum is 72.

The spelling of 19992953799 in words is "nineteen billion, nine hundred ninety-two million, nine hundred fifty-three thousand, seven hundred ninety-nine".