19228937854 has 16 divisors (see below), whose sum is σ = 32979413376. Its totient is φ = 8237093400.

The previous prime is 19228937831. The next prime is 19228937857. The reversal of 19228937854 is 45873982291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19228937857) 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, 292432 + ... + 352099.

It is an arithmetic number, because the mean of its divisors is an integer number (2061213336).

Almost surely, 2^19228937854 is an apocalyptic number.

19228937854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19228937854 is a deficient number, since it is larger than the sum of its proper divisors (13750475522).

19228937854 is a wasteful number, since it uses less digits than its factorization.

19228937854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646671.

The product of its digits is 8709120, while the sum is 58.

The spelling of 19228937854 in words is "nineteen billion, two hundred twenty-eight million, nine hundred thirty-seven thousand, eight hundred fifty-four".