19268731430 has 64 divisors (see below), whose sum is σ = 39696023808. Its totient is φ = 6671185920.

The previous prime is 19268731429. The next prime is 19268731511. The reversal of 19268731430 is 3413786291.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 582824 + ... + 614996.

It is an arithmetic number, because the mean of its divisors is an integer number (620250372).

Almost surely, 2^19268731430 is an apocalyptic number.

19268731430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19268731430 is an abundant number, since it is smaller than the sum of its proper divisors (20427292378).

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

19268731430 is a wasteful number, since it uses less digits than its factorization.

19268731430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32481.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 19268731430 in words is "nineteen billion, two hundred sixty-eight million, seven hundred thirty-one thousand, four hundred thirty".