86254447687 has 4 divisors (see below), whose sum is σ = 90794155480. Its totient is φ = 81714739896.

The previous prime is 86254447667. The next prime is 86254447757. The reversal of 86254447687 is 78674445268.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 86254447687 - 2¹¹ = 86254445639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86254447637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2269853868 + ... + 2269853905.

It is an arithmetic number, because the mean of its divisors is an integer number (22698538870).

Almost surely, 2^86254447687 is an apocalyptic number.

86254447687 is a deficient number, since it is larger than the sum of its proper divisors (4539707793).

86254447687 is a wasteful number, since it uses less digits than its factorization.

86254447687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539707792.

The product of its digits is 72253440, while the sum is 61.

The spelling of 86254447687 in words is "eighty-six billion, two hundred fifty-four million, four hundred forty-seven thousand, six hundred eighty-seven".