19493818054 has 8 divisors (see below), whose sum is σ = 29254467960. Its totient is φ = 9742328736.

The previous prime is 19493818051. The next prime is 19493818063. The reversal of 19493818054 is 45081839491.

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

It is a junction number, because it is equal to n+sod(n) for n = 19493817992 and 19493818010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19493818051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2284824 + ... + 2293339.

It is an arithmetic number, because the mean of its divisors is an integer number (3656808495).

Almost surely, 2^19493818054 is an apocalyptic number.

19493818054 is a deficient number, since it is larger than the sum of its proper divisors (9760649906).

19493818054 is a wasteful number, since it uses less digits than its factorization.

19493818054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4580294.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 19493818054 in words is "nineteen billion, four hundred ninety-three million, eight hundred eighteen thousand, fifty-four".