19875146384 has 20 divisors (see below), whose sum is σ = 40534838640. Its totient is φ = 9414542880.

The previous prime is 19875146381. The next prime is 19875146393. The reversal of 19875146384 is 48364157891.

It is a happy number.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19875146381) by changing a digit.

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, 32689082 + ... + 32689689.

It is an arithmetic number, because the mean of its divisors is an integer number (2026741932).

Almost surely, 2^19875146384 is an apocalyptic number.

It is an amenable number.

19875146384 is an abundant number, since it is smaller than the sum of its proper divisors (20659692256).

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

19875146384 is a wasteful number, since it uses less digits than its factorization.

19875146384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65378798 (or 65378792 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 56.

The spelling of 19875146384 in words is "nineteen billion, eight hundred seventy-five million, one hundred forty-six thousand, three hundred eighty-four".