863022376921 has 2 divisors, whose sum is σ = 863022376922. Its totient is φ = 863022376920.

The previous prime is 863022376891. The next prime is 863022376967. The reversal of 863022376921 is 129673220368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 835578810000 + 27443566921 = 914100^2 + 165661^2 .

It is a cyclic number.

It is not a de Polignac number, because 863022376921 - 2⁹ = 863022376409 is a prime.

It is not a weakly prime, because it can be changed into another prime (863022316921) 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 as a sum of consecutive naturals, namely, 431511188460 + 431511188461.

It is an arithmetic number, because the mean of its divisors is an integer number (431511188461).

Almost surely, 2^863022376921 is an apocalyptic number.

It is an amenable number.

863022376921 is a deficient number, since it is larger than the sum of its proper divisors (1).

863022376921 is an equidigital number, since it uses as much as digits as its factorization.

863022376921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 863022376921 in words is "eight hundred sixty-three billion, twenty-two million, three hundred seventy-six thousand, nine hundred twenty-one".