85914382993 has 2 divisors, whose sum is σ = 85914382994. Its totient is φ = 85914382992.

The previous prime is 85914382991. The next prime is 85914383003. The reversal of 85914382993 is 39928341958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81163451664 + 4750931329 = 284892^2 + 68927^2 .

It is a cyclic number.

It is not a de Polignac number, because 85914382993 - 2¹ = 85914382991 is a prime.

Together with 85914382991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (85914382991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42957191496 + 42957191497.

It is an arithmetic number, because the mean of its divisors is an integer number (42957191497).

Almost surely, 2^85914382993 is an apocalyptic number.

It is an amenable number.

85914382993 is a deficient number, since it is larger than the sum of its proper divisors (1).

85914382993 is an equidigital number, since it uses as much as digits as its factorization.

85914382993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16796160, while the sum is 61.

The spelling of 85914382993 in words is "eighty-five billion, nine hundred fourteen million, three hundred eighty-two thousand, nine hundred ninety-three".