19893830125104 has 160 divisors (see below), whose sum is σ = 61547000739840. Its totient is φ = 6116019602688.

The previous prime is 19893830125097. The next prime is 19893830125133. The reversal of 19893830125104 is 40152103839891.

It is a happy number.

19893830125104 is a `hidden beast` number, since 1 + 9 + 8 + 9 + 383 + 0 + 1 + 251 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5174049 + ... + 8158335.

It is an arithmetic number, because the mean of its divisors is an integer number (384668754624).

Almost surely, 2^{19893830125104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19893830125104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30773500369920).

19893830125104 is an abundant number, since it is smaller than the sum of its proper divisors (41653170614736).

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

19893830125104 is a wasteful number, since it uses less digits than its factorization.

19893830125104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985504 (or 2985492 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 19893830125104 in words is "nineteen trillion, eight hundred ninety-three billion, eight hundred thirty million, one hundred twenty-five thousand, one hundred four".