19294391274494 has 64 divisors (see below), whose sum is σ = 34258863945600. Its totient is φ = 7978128506880.

The previous prime is 19294391274491. The next prime is 19294391274517. The reversal of 19294391274494 is 49447219349291.

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 31 ways as a sum of consecutive naturals, for example, 28791782 + ... + 29454294.

It is an arithmetic number, because the mean of its divisors is an integer number (535294749150).

Almost surely, 2^{19294391274494} is an apocalyptic number.

19294391274494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19294391274494 is a deficient number, since it is larger than the sum of its proper divisors (14964472671106).

19294391274494 is a wasteful number, since it uses less digits than its factorization.

19294391274494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663125.

The product of its digits is 141087744, while the sum is 68.

The spelling of 19294391274494 in words is "nineteen trillion, two hundred ninety-four billion, three hundred ninety-one million, two hundred seventy-four thousand, four hundred ninety-four".