863000821061 has 2 divisors, whose sum is σ = 863000821062. Its totient is φ = 863000821060.

The previous prime is 863000820967. The next prime is 863000821073. The reversal of 863000821061 is 160128000368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 565669452100 + 297331368961 = 752110^2 + 545281^2 .

It is a cyclic number.

It is not a de Polignac number, because 863000821061 - 2²⁶ = 862933712197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863200821061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431500410530 + 431500410531.

It is an arithmetic number, because the mean of its divisors is an integer number (431500410531).

Almost surely, 2^863000821061 is an apocalyptic number.

It is an amenable number.

863000821061 is a deficient number, since it is larger than the sum of its proper divisors (1).

863000821061 is an equidigital number, since it uses as much as digits as its factorization.

863000821061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 863000821061 in words is "eight hundred sixty-three billion, eight hundred twenty-one thousand, sixty-one".