19372929117 has 4 divisors (see below), whose sum is σ = 25830572160. Its totient is φ = 12915286076.

The previous prime is 19372929109. The next prime is 19372929127. The reversal of 19372929117 is 71192927391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19372929117 - 2³ = 19372929109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19372929117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19372929127) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3228821517 + ... + 3228821522.

It is an arithmetic number, because the mean of its divisors is an integer number (6457643040).

Almost surely, 2^19372929117 is an apocalyptic number.

It is an amenable number.

19372929117 is a deficient number, since it is larger than the sum of its proper divisors (6457643043).

19372929117 is an equidigital number, since it uses as much as digits as its factorization.

19372929117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6457643042.

The product of its digits is 428652, while the sum is 51.

The spelling of 19372929117 in words is "nineteen billion, three hundred seventy-two million, nine hundred twenty-nine thousand, one hundred seventeen".