19481492358 has 16 divisors (see below), whose sum is σ = 43292205360. Its totient is φ = 6493830768.

The previous prime is 19481492341. The next prime is 19481492383. The reversal of 19481492358 is 85329418491.

It is a happy number.

19481492358 is a `hidden beast` number, since 194 + 8 + 14 + 92 + 358 = 666.

It is a super-3 number, since 3×19481492358³ (a number of 32 digits) contains 333 as substring.

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: 360768377 = 19481492358 / (1 + 9 + 4 + 8 + 1 + 4 + 9 + 2 + 3 + 5 + 8).

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 7 ways as a sum of consecutive naturals, for example, 180384135 + ... + 180384242.

It is an arithmetic number, because the mean of its divisors is an integer number (2705762835).

Almost surely, 2^19481492358 is an apocalyptic number.

19481492358 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

19481492358 is an abundant number, since it is smaller than the sum of its proper divisors (23810713002).

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

19481492358 is a wasteful number, since it uses less digits than its factorization.

19481492358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360768388 (or 360768382 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The spelling of 19481492358 in words is "nineteen billion, four hundred eighty-one million, four hundred ninety-two thousand, three hundred fifty-eight".