19294391274493 has 8 divisors (see below), whose sum is σ = 19487341497728. Its totient is φ = 19101549244464.

The previous prime is 19294391274491. The next prime is 19294391274517. The reversal of 19294391274493 is 39447219349291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19294391274493 - 2¹ = 19294391274491 is a prime.

It is a super-2 number, since 2×19294391274493² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19294391274491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26689830 + ... + 27403207.

It is an arithmetic number, because the mean of its divisors is an integer number (2435917687216).

Almost surely, 2^{19294391274493} is an apocalyptic number.

It is an amenable number.

19294391274493 is a deficient number, since it is larger than the sum of its proper divisors (192950223235).

19294391274493 is a wasteful number, since it uses less digits than its factorization.

19294391274493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54096603.

The product of its digits is 105815808, while the sum is 67.

The spelling of 19294391274493 in words is "nineteen trillion, two hundred ninety-four billion, three hundred ninety-one million, two hundred seventy-four thousand, four hundred ninety-three".