19297993015 has 16 divisors (see below), whose sum is σ = 27378434880. Its totient is φ = 12776601600.

The previous prime is 19297993009. The next prime is 19297993063. The reversal of 19297993015 is 51039979291.

It is not a de Polignac number, because 19297993015 - 2³ = 19297993007 is a prime.

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, 9505386 + ... + 9507415.

It is an arithmetic number, because the mean of its divisors is an integer number (1711152180).

Almost surely, 2^19297993015 is an apocalyptic number.

19297993015 is a deficient number, since it is larger than the sum of its proper divisors (8080441865).

19297993015 is a wasteful number, since it uses less digits than its factorization.

19297993015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19012842.

The product of its (nonzero) digits is 1377810, while the sum is 55.

The spelling of 19297993015 in words is "nineteen billion, two hundred ninety-seven million, nine hundred ninety-three thousand, fifteen".