85247137212547 has 6 divisors (see below), whose sum is σ = 90556647489068. Its totient is φ = 80232599729184.

The previous prime is 85247137212493. The next prime is 85247137212557. The reversal of 85247137212547 is 74521273174258.

It is not a de Polignac number, because 85247137212547 - 2³⁵ = 85212777474179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85247137212491 and 85247137212500.

It is not an unprimeable number, because it can be changed into a prime (85247137212557) 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 5 ways as a sum of consecutive naturals, for example, 147486396273 + ... + 147486396850.

Almost surely, 2^{85247137212547} is an apocalyptic number.

85247137212547 is a deficient number, since it is larger than the sum of its proper divisors (5309510276521).

85247137212547 is a wasteful number, since it uses less digits than its factorization.

85247137212547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294972793157 (or 294972793140 counting only the distinct ones).

The product of its digits is 26342400, while the sum is 58.

The spelling of 85247137212547 in words is "eighty-five trillion, two hundred forty-seven billion, one hundred thirty-seven million, two hundred twelve thousand, five hundred forty-seven".