880641402517 has 2 divisors, whose sum is σ = 880641402518. Its totient is φ = 880641402516.

The previous prime is 880641402479. The next prime is 880641402521. The reversal of 880641402517 is 715204146088.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 606344099761 + 274297302756 = 778681^2 + 523734^2 .

It is a cyclic number.

It is not a de Polignac number, because 880641402517 - 2¹¹ = 880641400469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (880641402527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440320701258 + 440320701259.

It is an arithmetic number, because the mean of its divisors is an integer number (440320701259).

Almost surely, 2^880641402517 is an apocalyptic number.

It is an amenable number.

880641402517 is a deficient number, since it is larger than the sum of its proper divisors (1).

880641402517 is an equidigital number, since it uses as much as digits as its factorization.

880641402517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 880641402517 in words is "eight hundred eighty billion, six hundred forty-one million, four hundred two thousand, five hundred seventeen".