19268231958 has 12 divisors (see below), whose sum is σ = 41747835948. Its totient is φ = 6422743980.

The previous prime is 19268231909. The next prime is 19268231963. The reversal of 19268231958 is 85913286291.

19268231958 is a `hidden beast` number, since 19 + 268 + 2 + 319 + 58 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 535228648 + ... + 535228683.

It is an arithmetic number, because the mean of its divisors is an integer number (3478986329).

Almost surely, 2^19268231958 is an apocalyptic number.

19268231958 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

19268231958 is an abundant number, since it is smaller than the sum of its proper divisors (22479603990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19268231958 is a wasteful number, since it uses less digits than its factorization.

19268231958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070457339 (or 1070457336 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The spelling of 19268231958 in words is "nineteen billion, two hundred sixty-eight million, two hundred thirty-one thousand, nine hundred fifty-eight".