19274317613 has 16 divisors (see below), whose sum is σ = 20509200000. Its totient is φ = 18050898432.

The previous prime is 19274317603. The next prime is 19274317633. The reversal of 19274317613 is 31671347291.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19274317613 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 (19274317603) 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, 3042233 + ... + 3048561.

It is an arithmetic number, because the mean of its divisors is an integer number (1281825000).

Almost surely, 2^19274317613 is an apocalyptic number.

It is an amenable number.

19274317613 is a deficient number, since it is larger than the sum of its proper divisors (1234882387).

19274317613 is a wasteful number, since it uses less digits than its factorization.

19274317613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7204.

The product of its digits is 190512, while the sum is 44.

The spelling of 19274317613 in words is "nineteen billion, two hundred seventy-four million, three hundred seventeen thousand, six hundred thirteen".