870641434140623 has 2 divisors, whose sum is σ = 870641434140624. Its totient is φ = 870641434140622.

The previous prime is 870641434140617. The next prime is 870641434140721. The reversal of 870641434140623 is 326041434146078.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 870641434140623 - 2⁸ = 870641434140367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870641434140823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435320717070311 + 435320717070312.

It is an arithmetic number, because the mean of its divisors is an integer number (435320717070312).

Almost surely, 2^{870641434140623} is an apocalyptic number.

870641434140623 is a deficient number, since it is larger than the sum of its proper divisors (1).

870641434140623 is an equidigital number, since it uses as much as digits as its factorization.

870641434140623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9289728, while the sum is 53.

The spelling of 870641434140623 in words is "eight hundred seventy trillion, six hundred forty-one billion, four hundred thirty-four million, one hundred forty thousand, six hundred twenty-three".