19416513893 has 8 divisors (see below), whose sum is σ = 22194273600. Its totient is φ = 16639747200.

The previous prime is 19416513889. The next prime is 19416513913. The reversal of 19416513893 is 39831561491.

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 19416513893 - 2² = 19416513889 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 (19416513803) 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, 205868 + ... + 284981.

It is an arithmetic number, because the mean of its divisors is an integer number (2774284200).

Almost surely, 2^19416513893 is an apocalyptic number.

It is an amenable number.

19416513893 is a deficient number, since it is larger than the sum of its proper divisors (2777759707).

19416513893 is an equidigital number, since it uses as much as digits as its factorization.

19416513893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496507.

The product of its digits is 699840, while the sum is 50.

The spelling of 19416513893 in words is "nineteen billion, four hundred sixteen million, five hundred thirteen thousand, eight hundred ninety-three".