8465780875679 has 2 divisors, whose sum is σ = 8465780875680. Its totient is φ = 8465780875678.

The previous prime is 8465780875619. The next prime is 8465780875781. The reversal of 8465780875679 is 9765780875648.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8465780875679 is a prime.

It is a super-2 number, since 2×8465780875679² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8465780875619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4232890437839 + 4232890437840.

It is an arithmetic number, because the mean of its divisors is an integer number (4232890437840).

Almost surely, 2^{8465780875679} is an apocalyptic number.

8465780875679 is a deficient number, since it is larger than the sum of its proper divisors (1).

8465780875679 is an equidigital number, since it uses as much as digits as its factorization.

8465780875679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5689958400, while the sum is 80.

The spelling of 8465780875679 in words is "eight trillion, four hundred sixty-five billion, seven hundred eighty million, eight hundred seventy-five thousand, six hundred seventy-nine".