19886973041 has 8 divisors (see below), whose sum is σ = 21465091200. Its totient is φ = 18315762192.

The previous prime is 19886973037. The next prime is 19886973047. The reversal of 19886973041 is 14037968891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19886973041 - 2² = 19886973037 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19886973047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1720841 + ... + 1732358.

It is an arithmetic number, because the mean of its divisors is an integer number (2683136400).

Almost surely, 2^19886973041 is an apocalyptic number.

It is an amenable number.

19886973041 is a deficient number, since it is larger than the sum of its proper divisors (1578118159).

19886973041 is a wasteful number, since it uses less digits than its factorization.

19886973041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3453655.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 19886973041 in words is "nineteen billion, eight hundred eighty-six million, nine hundred seventy-three thousand, forty-one".