86647872387 has 8 divisors (see below), whose sum is σ = 116168787280. Its totient is φ = 57446102880.

The previous prime is 86647872379. The next prime is 86647872419. The reversal of 86647872387 is 78327874668.

It is a happy number.

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

It is not a de Polignac number, because 86647872387 - 2³ = 86647872379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86647872317) 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, 79785712 + ... + 79786797.

It is an arithmetic number, because the mean of its divisors is an integer number (14521098410).

Almost surely, 2^86647872387 is an apocalyptic number.

86647872387 is a deficient number, since it is larger than the sum of its proper divisors (29520914893).

86647872387 is a wasteful number, since it uses less digits than its factorization.

86647872387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159572693.

The product of its digits is 151732224, while the sum is 66.

The spelling of 86647872387 in words is "eighty-six billion, six hundred forty-seven million, eight hundred seventy-two thousand, three hundred eighty-seven".