19314857800 has 48 divisors (see below), whose sum is σ = 51322340160. Its totient is φ = 6622236480.

The previous prime is 19314857761. The next prime is 19314857909. The reversal of 19314857800 is 875841391.

It is a happy number.

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 in 11 ways as a sum of consecutive naturals, for example, 6896764 + ... + 6899563.

It is an arithmetic number, because the mean of its divisors is an integer number (1069215420).

Almost surely, 2^19314857800 is an apocalyptic number.

19314857800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19314857800 is an abundant number, since it is smaller than the sum of its proper divisors (32007482360).

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

19314857800 is a wasteful number, since it uses less digits than its factorization.

19314857800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13796350 (or 13796341 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 19314857800 in words is "nineteen billion, three hundred fourteen million, eight hundred fifty-seven thousand, eight hundred".