19473791488 has 40 divisors (see below), whose sum is σ = 38945953728. Its totient is φ = 9727785984.

The previous prime is 19473791459. The next prime is 19473791503. The reversal of 19473791488 is 88419737491.

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 3 ways as a sum of consecutive naturals, for example, 547495 + ... + 581977.

Almost surely, 2^19473791488 is an apocalyptic number.

It is an amenable number.

19473791488 is a deficient number, since it is larger than the sum of its proper divisors (19472162240).

19473791488 is an equidigital number, since it uses as much as digits as its factorization.

19473791488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35604 (or 35588 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 61.

It can be divided in two parts, 194737 and 91488, that added together give a square (286225 = 535²).

The spelling of 19473791488 in words is "nineteen billion, four hundred seventy-three million, seven hundred ninety-one thousand, four hundred eighty-eight".