6420887922963 has 8 divisors (see below), whose sum is σ = 8561195838400. Its totient is φ = 4280585978088.

The previous prime is 6420887922961. The next prime is 6420887922983. The reversal of 6420887922963 is 3692297880246.

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

It is not a de Polignac number, because 6420887922963 - 2¹ = 6420887922961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6420887922894 and 6420887922903.

It is not an unprimeable number, because it can be changed into a prime (6420887922961) 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, 2695248 + ... + 4483986.

It is an arithmetic number, because the mean of its divisors is an integer number (1070149479800).

Almost surely, 2^{6420887922963} is an apocalyptic number.

6420887922963 is a deficient number, since it is larger than the sum of its proper divisors (2140307915437).

6420887922963 is a wasteful number, since it uses less digits than its factorization.

6420887922963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985281.

The product of its (nonzero) digits is 125411328, while the sum is 66.

The spelling of 6420887922963 in words is "six trillion, four hundred twenty billion, eight hundred eighty-seven million, nine hundred twenty-two thousand, nine hundred sixty-three".