19350939018 has 16 divisors (see below), whose sum is σ = 38706550560. Its totient is φ = 6449534256.

The previous prime is 19350938977. The next prime is 19350939037. The reversal of 19350939018 is 81093905391.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139653 + ... + 241256.

It is an arithmetic number, because the mean of its divisors is an integer number (2419159410).

Almost surely, 2^19350939018 is an apocalyptic number.

19350939018 is an abundant number, since it is smaller than the sum of its proper divisors (19355611542).

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

19350939018 is a wasteful number, since it uses less digits than its factorization.

19350939018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389381.

The product of its (nonzero) digits is 262440, while the sum is 48.

The spelling of 19350939018 in words is "nineteen billion, three hundred fifty million, nine hundred thirty-nine thousand, eighteen".