85813766547 has 8 divisors (see below), whose sum is σ = 114424324560. Its totient is φ = 57206193120.

The previous prime is 85813766537. The next prime is 85813766611. The reversal of 85813766547 is 74566731858.

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

It is not a de Polignac number, because 85813766547 - 2²⁶ = 85746657683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85813766537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678172 + ... + 794697.

It is an arithmetic number, because the mean of its divisors is an integer number (14303040570).

Almost surely, 2^85813766547 is an apocalyptic number.

85813766547 is a deficient number, since it is larger than the sum of its proper divisors (28610558013).

85813766547 is a wasteful number, since it uses less digits than its factorization.

85813766547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492293.

The product of its digits is 33868800, while the sum is 60.

The spelling of 85813766547 in words is "eighty-five billion, eight hundred thirteen million, seven hundred sixty-six thousand, five hundred forty-seven".