19270957856 has 12 divisors (see below), whose sum is σ = 37939698342. Its totient is φ = 9635478912.

The previous prime is 19270957817. The next prime is 19270957861. The reversal of 19270957856 is 65875907291.

It can be written as a sum of positive squares in only one way, i.e., 14912317456 + 4358640400 = 122116^2 + 66020^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19270957795 and 19270957804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301108685 + ... + 301108748.

Almost surely, 2^19270957856 is an apocalyptic number.

19270957856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19270957856 is a deficient number, since it is larger than the sum of its proper divisors (18668740486).

19270957856 is an equidigital number, since it uses as much as digits as its factorization.

19270957856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602217443 (or 602217435 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 59.

The spelling of 19270957856 in words is "nineteen billion, two hundred seventy million, nine hundred fifty-seven thousand, eight hundred fifty-six".