85519888331 has 4 divisors (see below), whose sum is σ = 85698427200. Its totient is φ = 85341349464.

The previous prime is 85519888319. The next prime is 85519888361. The reversal of 85519888331 is 13388891558.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85519888331 - 2¹⁰ = 85519887307 is a prime.

It is a super-2 number, since 2×85519888331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85519888361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89268716 + ... + 89269673.

It is an arithmetic number, because the mean of its divisors is an integer number (21424606800).

Almost surely, 2^85519888331 is an apocalyptic number.

85519888331 is a deficient number, since it is larger than the sum of its proper divisors (178538869).

85519888331 is a wasteful number, since it uses less digits than its factorization.

85519888331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178538868.

The product of its digits is 8294400, while the sum is 59.

The spelling of 85519888331 in words is "eighty-five billion, five hundred nineteen million, eight hundred eighty-eight thousand, three hundred thirty-one".