19349454492 has 36 divisors (see below), whose sum is σ = 49712948376. Its totient is φ = 6344082720.

The previous prime is 19349454427. The next prime is 19349454511. The reversal of 19349454492 is 29445494391.

19349454492 is a `hidden beast` number, since 1 + 9 + 3 + 4 + 9 + 4 + 544 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×19349454492³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4403418 + ... + 4407809.

Almost surely, 2^19349454492 is an apocalyptic number.

19349454492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19349454492 is an abundant number, since it is smaller than the sum of its proper divisors (30363493884).

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

19349454492 is a wasteful number, since it uses less digits than its factorization.

19349454492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8811298 (or 8811293 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The spelling of 19349454492 in words is "nineteen billion, three hundred forty-nine million, four hundred fifty-four thousand, four hundred ninety-two".