85161376459 has 2 divisors, whose sum is σ = 85161376460. Its totient is φ = 85161376458.

The previous prime is 85161376403. The next prime is 85161376501. The reversal of 85161376459 is 95467316158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85161376459 - 2²³ = 85152987851 is a prime.

It is not a weakly prime, because it can be changed into another prime (85161476459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42580688229 + 42580688230.

It is an arithmetic number, because the mean of its divisors is an integer number (42580688230).

Almost surely, 2^85161376459 is an apocalyptic number.

85161376459 is a deficient number, since it is larger than the sum of its proper divisors (1).

85161376459 is an equidigital number, since it uses as much as digits as its factorization.

85161376459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 55.

The spelling of 85161376459 in words is "eighty-five billion, one hundred sixty-one million, three hundred seventy-six thousand, four hundred fifty-nine".