85228567157 has 4 divisors (see below), whose sum is σ = 85336863456. Its totient is φ = 85120270860.

The previous prime is 85228567153. The next prime is 85228567163. The reversal of 85228567157 is 75176582258.

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 85228567157 - 2² = 85228567153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85228567153) 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, 54146969 + ... + 54148542.

It is an arithmetic number, because the mean of its divisors is an integer number (21334215864).

Almost surely, 2^85228567157 is an apocalyptic number.

It is an amenable number.

85228567157 is a deficient number, since it is larger than the sum of its proper divisors (108296299).

85228567157 is a wasteful number, since it uses less digits than its factorization.

85228567157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108296298.

The product of its digits is 9408000, while the sum is 56.

The spelling of 85228567157 in words is "eighty-five billion, two hundred twenty-eight million, five hundred sixty-seven thousand, one hundred fifty-seven".