85511835157 has 12 divisors (see below), whose sum is σ = 104708370720. Its totient is φ = 69438181176.

The previous prime is 85511835151. The next prime is 85511835163. The reversal of 85511835157 is 75153811558.

It is an interprime number because it is at equal distance from previous prime (85511835151) and next prime (85511835163).

It is not a de Polignac number, because 85511835157 - 2¹⁹ = 85511310869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 85511835157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85511835151) 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 in 11 ways as a sum of consecutive naturals, for example, 45923793 + ... + 45925654.

It is an arithmetic number, because the mean of its divisors is an integer number (8725697560).

Almost surely, 2^85511835157 is an apocalyptic number.

It is an amenable number.

85511835157 is a deficient number, since it is larger than the sum of its proper divisors (19196535563).

85511835157 is a wasteful number, since it uses less digits than its factorization.

85511835157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91849480 (or 91849473 counting only the distinct ones).

The product of its digits is 840000, while the sum is 49.

The spelling of 85511835157 in words is "eighty-five billion, five hundred eleven million, eight hundred thirty-five thousand, one hundred fifty-seven".