85506376547 has 6 divisors (see below), whose sum is σ = 88556545428. Its totient is φ = 82557879992.

The previous prime is 85506376523. The next prime is 85506376559. The reversal of 85506376547 is 74567360558.

It is not a de Polignac number, because 85506376547 - 2¹² = 85506372451 is a prime.

It is a super-2 number, since 2×85506376547² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85506376492 and 85506376501.

It is not an unprimeable number, because it can be changed into a prime (85506376507) 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, 50835293 + ... + 50836974.

It is an arithmetic number, because the mean of its divisors is an integer number (14759424238).

Almost surely, 2^85506376547 is an apocalyptic number.

85506376547 is a deficient number, since it is larger than the sum of its proper divisors (3050168881).

85506376547 is a wasteful number, since it uses less digits than its factorization.

85506376547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101672325 (or 101672296 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 56.

The spelling of 85506376547 in words is "eighty-five billion, five hundred six million, three hundred seventy-six thousand, five hundred forty-seven".