85477287331 has 8 divisors (see below), whose sum is σ = 89372448000. Its totient is φ = 81597023112.

The previous prime is 85477287317. The next prime is 85477287347. The reversal of 85477287331 is 13378277458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85477287331 - 2²⁹ = 84940416419 is a prime.

It is a super-2 number, since 2×85477287331² (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 (85477287361) 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 7 ways as a sum of consecutive naturals, for example, 3712375 + ... + 3735328.

It is an arithmetic number, because the mean of its divisors is an integer number (11171556000).

Almost surely, 2^85477287331 is an apocalyptic number.

85477287331 is a deficient number, since it is larger than the sum of its proper divisors (3895160669).

85477287331 is a wasteful number, since it uses less digits than its factorization.

85477287331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7448225.

The product of its digits is 7902720, while the sum is 55.

The spelling of 85477287331 in words is "eighty-five billion, four hundred seventy-seven million, two hundred eighty-seven thousand, three hundred thirty-one".