19708932258 has 16 divisors (see below), whose sum is σ = 43797627360. Its totient is φ = 6569644068.

The previous prime is 19708932251. The next prime is 19708932281. The reversal of 19708932258 is 85223980791.

19708932258 is a `hidden beast` number, since 197 + 0 + 89 + 322 + 58 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 364980227 = 19708932258 / (1 + 9 + 7 + 0 + 8 + 9 + 3 + 2 + 2 + 5 + 8).

It is not an unprimeable number, because it can be changed into a prime (19708932251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182490060 + ... + 182490167.

It is an arithmetic number, because the mean of its divisors is an integer number (2737351710).

Almost surely, 2^19708932258 is an apocalyptic number.

19708932258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

19708932258 is an abundant number, since it is smaller than the sum of its proper divisors (24088695102).

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

19708932258 is a wasteful number, since it uses less digits than its factorization.

19708932258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364980238 (or 364980232 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 19708932258 in words is "nineteen billion, seven hundred eight million, nine hundred thirty-two thousand, two hundred fifty-eight".