19774818048 has 36 divisors (see below), whose sum is σ = 52629856328. Its totient is φ = 6591605760.

The previous prime is 19774817999. The next prime is 19774818071. The reversal of 19774818048 is 84081847791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12873463 + ... + 12874998.

Almost surely, 2^19774818048 is an apocalyptic number.

It is an amenable number.

19774818048 is an abundant number, since it is smaller than the sum of its proper divisors (32855038280).

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

19774818048 is an equidigital number, since it uses as much as digits as its factorization.

19774818048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25748480 (or 25748466 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 57.

The spelling of 19774818048 in words is "nineteen billion, seven hundred seventy-four million, eight hundred eighteen thousand, forty-eight".