19454119888 has 40 divisors (see below), whose sum is σ = 44241231872. Its totient is φ = 8112140928.

The previous prime is 19454119879. The next prime is 19454119903. The reversal of 19454119888 is 88891145491.

It is a congruent number.

It is an unprimeable number.

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, 2343120 + ... + 2351407.

Almost surely, 2^19454119888 is an apocalyptic number.

It is an amenable number.

19454119888 is an abundant number, since it is smaller than the sum of its proper divisors (24787111984).

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

19454119888 is a wasteful number, since it uses less digits than its factorization.

19454119888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694579 (or 4694573 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 58.

The spelling of 19454119888 in words is "nineteen billion, four hundred fifty-four million, one hundred nineteen thousand, eight hundred eighty-eight".