19313359157 has 4 divisors (see below), whose sum is σ = 19314694176. Its totient is φ = 19312024140.

The previous prime is 19313359147. The next prime is 19313359193. The reversal of 19313359157 is 75195331391.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75195331391 = 43 ⋅1748728637.

It is a cyclic number.

It is not a de Polignac number, because 19313359157 - 2¹⁶ = 19313293621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19313359147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645569 + ... + 674822.

It is an arithmetic number, because the mean of its divisors is an integer number (4828673544).

Almost surely, 2^19313359157 is an apocalyptic number.

It is an amenable number.

19313359157 is a deficient number, since it is larger than the sum of its proper divisors (1335019).

19313359157 is a wasteful number, since it uses less digits than its factorization.

19313359157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335018.

The product of its digits is 382725, while the sum is 47.

The spelling of 19313359157 in words is "nineteen billion, three hundred thirteen million, three hundred fifty-nine thousand, one hundred fifty-seven".