85547687513 has 4 divisors (see below), whose sum is σ = 88307290368. Its totient is φ = 82788084660.

The previous prime is 85547687503. The next prime is 85547687551. The reversal of 85547687513 is 31578674558.

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 85547687513 - 2¹⁴ = 85547671129 is a prime.

It is a super-2 number, since 2×85547687513² (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 (85547687503) 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 3 ways as a sum of consecutive naturals, for example, 1379801381 + ... + 1379801442.

It is an arithmetic number, because the mean of its divisors is an integer number (22076822592).

Almost surely, 2^85547687513 is an apocalyptic number.

It is an amenable number.

85547687513 is a deficient number, since it is larger than the sum of its proper divisors (2759602855).

85547687513 is a wasteful number, since it uses less digits than its factorization.

85547687513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759602854.

The product of its digits is 28224000, while the sum is 59.

The spelling of 85547687513 in words is "eighty-five billion, five hundred forty-seven million, six hundred eighty-seven thousand, five hundred thirteen".