863664351041 has 2 divisors, whose sum is σ = 863664351042. Its totient is φ = 863664351040.

The previous prime is 863664351031. The next prime is 863664351071. The reversal of 863664351041 is 140153466368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 764757246016 + 98907105025 = 874504^2 + 314495^2 .

It is a cyclic number.

It is not a de Polignac number, because 863664351041 - 2⁶ = 863664350977 is a prime.

It is a super-2 number, since 2×863664351041² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (863664351031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431832175520 + 431832175521.

It is an arithmetic number, because the mean of its divisors is an integer number (431832175521).

Almost surely, 2^863664351041 is an apocalyptic number.

It is an amenable number.

863664351041 is a deficient number, since it is larger than the sum of its proper divisors (1).

863664351041 is an equidigital number, since it uses as much as digits as its factorization.

863664351041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 863664351041 in words is "eight hundred sixty-three billion, six hundred sixty-four million, three hundred fifty-one thousand, forty-one".