19799206356 has 24 divisors (see below), whose sum is σ = 47688411904. Its totient is φ = 6386840640.

The previous prime is 19799206309. The next prime is 19799206363. The reversal of 19799206356 is 65360299791.

It is a junction number, because it is equal to n+sod(n) for n = 19799206296 and 19799206305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26611465 + ... + 26612208.

Almost surely, 2^19799206356 is an apocalyptic number.

It is an amenable number.

19799206356 is an abundant number, since it is smaller than the sum of its proper divisors (27889205548).

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

19799206356 is a wasteful number, since it uses less digits than its factorization.

19799206356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53223711 (or 53223709 counting only the distinct ones).

The product of its (nonzero) digits is 5511240, while the sum is 57.

The spelling of 19799206356 in words is "nineteen billion, seven hundred ninety-nine million, two hundred six thousand, three hundred fifty-six".