19329591953 has 16 divisors (see below), whose sum is σ = 22141050624. Its totient is φ = 16530708480.

The previous prime is 19329591907. The next prime is 19329591959. The reversal of 19329591953 is 35919592391.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19329591953 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19329591959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10464476 + ... + 10466322.

It is an arithmetic number, because the mean of its divisors is an integer number (1383815664).

Almost surely, 2^19329591953 is an apocalyptic number.

It is an amenable number.

19329591953 is a deficient number, since it is larger than the sum of its proper divisors (2811458671).

19329591953 is a wasteful number, since it uses less digits than its factorization.

19329591953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432.

The product of its digits is 2952450, while the sum is 56.

The spelling of 19329591953 in words is "nineteen billion, three hundred twenty-nine million, five hundred ninety-one thousand, nine hundred fifty-three".