19974471814392 has 16 divisors (see below), whose sum is σ = 49936179536040. Its totient is φ = 6658157271456.

The previous prime is 19974471814373. The next prime is 19974471814421. The reversal of 19974471814392 is 29341817447991.

It is a happy number.

It is a hoax number, since the sum of its digits (69) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416134829443 + ... + 416134829490.

Almost surely, 2^{19974471814392} is an apocalyptic number.

19974471814392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19974471814392 is an abundant number, since it is smaller than the sum of its proper divisors (29961707721648).

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

19974471814392 is a wasteful number, since it uses less digits than its factorization.

19974471814392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832269658942 (or 832269658938 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 69.

The spelling of 19974471814392 in words is "nineteen trillion, nine hundred seventy-four billion, four hundred seventy-one million, eight hundred fourteen thousand, three hundred ninety-two".