86556219487 has 8 divisors (see below), whose sum is σ = 86845123296. Its totient is φ = 86267416032.

The previous prime is 86556219479. The next prime is 86556219499. The reversal of 86556219487 is 78491265568.

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

It is a cyclic number.

It is not a de Polignac number, because 86556219487 - 2³ = 86556219479 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 (86556213487) 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, 1963573 + ... + 2007169.

It is an arithmetic number, because the mean of its divisors is an integer number (10855640412).

Almost surely, 2^86556219487 is an apocalyptic number.

86556219487 is a deficient number, since it is larger than the sum of its proper divisors (288903809).

86556219487 is a wasteful number, since it uses less digits than its factorization.

86556219487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50177.

The product of its digits is 29030400, while the sum is 61.

The spelling of 86556219487 in words is "eighty-six billion, five hundred fifty-six million, two hundred nineteen thousand, four hundred eighty-seven".