19385968654 has 8 divisors (see below), whose sum is σ = 31315795560. Its totient is φ = 8947370136.

The previous prime is 19385968643. The next prime is 19385968681. The reversal of 19385968654 is 45686958391.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372807064 + ... + 372807115.

It is an arithmetic number, because the mean of its divisors is an integer number (3914474445).

Almost surely, 2^19385968654 is an apocalyptic number.

19385968654 is a deficient number, since it is larger than the sum of its proper divisors (11929826906).

19385968654 is a wasteful number, since it uses less digits than its factorization.

19385968654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745614194.

The product of its digits is 55987200, while the sum is 64.

The spelling of 19385968654 in words is "nineteen billion, three hundred eighty-five million, nine hundred sixty-eight thousand, six hundred fifty-four".