20017962047 has 8 divisors (see below), whose sum is σ = 20097738672. Its totient is φ = 19938240000.

The previous prime is 20017962023. The next prime is 20017962059. The reversal of 20017962047 is 74026971002.

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

It is a cyclic number.

It is not a de Polignac number, because 20017962047 - 2⁶ = 20017961983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20017962047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20017962067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822047 + ... + 846047.

It is an arithmetic number, because the mean of its divisors is an integer number (2512217334).

Almost surely, 2^20017962047 is an apocalyptic number.

20017962047 is a deficient number, since it is larger than the sum of its proper divisors (79776625).

20017962047 is a wasteful number, since it uses less digits than its factorization.

20017962047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27289.

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 20017962047 in words is "twenty billion, seventeen million, nine hundred sixty-two thousand, forty-seven".