19472782256 has 20 divisors (see below), whose sum is σ = 37730965272. Its totient is φ = 9735758976.

The previous prime is 19472782213. The next prime is 19472782267. The reversal of 19472782256 is 65228727491.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 19472782198 and 19472782207.

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, 306380 + ... + 364436.

Almost surely, 2^19472782256 is an apocalyptic number.

19472782256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19472782256 is a deficient number, since it is larger than the sum of its proper divisors (18258183016).

19472782256 is a wasteful number, since it uses less digits than its factorization.

19472782256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79028 (or 79022 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The spelling of 19472782256 in words is "nineteen billion, four hundred seventy-two million, seven hundred eighty-two thousand, two hundred fifty-six".