85293684257 has 4 divisors (see below), whose sum is σ = 85294672560. Its totient is φ = 85292695956.

The previous prime is 85293684169. The next prime is 85293684277. The reversal of 85293684257 is 75248639258.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85293684257 - 2¹⁶ = 85293618721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85293684196 and 85293684205.

It is not an unprimeable number, because it can be changed into a prime (85293684277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350843 + ... + 541920.

It is an arithmetic number, because the mean of its divisors is an integer number (21323668140).

Almost surely, 2^85293684257 is an apocalyptic number.

It is an amenable number.

85293684257 is a deficient number, since it is larger than the sum of its proper divisors (988303).

85293684257 is an equidigital number, since it uses as much as digits as its factorization.

85293684257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988302.

The product of its digits is 29030400, while the sum is 59.

The spelling of 85293684257 in words is "eighty-five billion, two hundred ninety-three million, six hundred eighty-four thousand, two hundred fifty-seven".