19391407014 has 32 divisors (see below), whose sum is σ = 44616761856. Its totient is φ = 5503708800.

The previous prime is 19391406971. The next prime is 19391407043. The reversal of 19391407014 is 41070419391.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1522467 + ... + 1535150.

It is an arithmetic number, because the mean of its divisors is an integer number (1394273808).

Almost surely, 2^19391407014 is an apocalyptic number.

19391407014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19391407014 is an abundant number, since it is smaller than the sum of its proper divisors (25225354842).

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

19391407014 is a wasteful number, since it uses less digits than its factorization.

19391407014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057780.

The product of its (nonzero) digits is 27216, while the sum is 39.

The spelling of 19391407014 in words is "nineteen billion, three hundred ninety-one million, four hundred seven thousand, fourteen".