19314050491 has 8 divisors (see below), whose sum is σ = 19681930800. Its totient is φ = 18946298592.

The previous prime is 19314050477. The next prime is 19314050507. The reversal of 19314050491 is 19405041391.

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 19314050491 - 2⁷ = 19314050363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19314050491.

It is not an unprimeable number, because it can be changed into a prime (19314050471) 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, 304921 + ... + 362773.

It is an arithmetic number, because the mean of its divisors is an integer number (2460241350).

Almost surely, 2^19314050491 is an apocalyptic number.

19314050491 is a deficient number, since it is larger than the sum of its proper divisors (367880309).

19314050491 is an equidigital number, since it uses as much as digits as its factorization.

19314050491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64205.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 19314050491 in words is "nineteen billion, three hundred fourteen million, fifty thousand, four hundred ninety-one".