19314394660 has 24 divisors (see below), whose sum is σ = 44247522816. Its totient is φ = 7023416160.

The previous prime is 19314394643. The next prime is 19314394699. The reversal of 19314394660 is 6649341391.

It is a self number, because there is not a number n which added to its sum of digits gives 19314394660.

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 7 ways as a sum of consecutive naturals, for example, 43896132 + ... + 43896571.

It is an arithmetic number, because the mean of its divisors is an integer number (1843646784).

Almost surely, 2^19314394660 is an apocalyptic number.

19314394660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19314394660 is an abundant number, since it is smaller than the sum of its proper divisors (24933128156).

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

19314394660 is a wasteful number, since it uses less digits than its factorization.

19314394660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87792723 (or 87792721 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 19314394660 in words is "nineteen billion, three hundred fourteen million, three hundred ninety-four thousand, six hundred sixty".