8920631420817 has 8 divisors (see below), whose sum is σ = 11894260004640. Its totient is φ = 5947045225440.

The previous prime is 8920631420791. The next prime is 8920631420849. The reversal of 8920631420817 is 7180241360298.

It is a happy number.

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

It is not a de Polignac number, because 8920631420817 - 2¹⁶ = 8920631355281 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 8920631420817.

It is not an unprimeable number, because it can be changed into a prime (8920631427817) 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, 10102767 + ... + 10950212.

It is an arithmetic number, because the mean of its divisors is an integer number (1486782500580).

Almost surely, 2^{8920631420817} is an apocalyptic number.

It is an amenable number.

8920631420817 is a deficient number, since it is larger than the sum of its proper divisors (2973628583823).

8920631420817 is a wasteful number, since it uses less digits than its factorization.

8920631420817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21194223.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 8920631420817 in words is "eight trillion, nine hundred twenty billion, six hundred thirty-one million, four hundred twenty thousand, eight hundred seventeen".