86776632427 has 4 divisors (see below), whose sum is σ = 86783598720. Its totient is φ = 86769666136.

The previous prime is 86776632421. The next prime is 86776632451. The reversal of 86776632427 is 72423667768.

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

It is a cyclic number.

It is not a de Polignac number, because 86776632427 - 2³ = 86776632419 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86776632421) 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, 3464428 + ... + 3489385.

It is an arithmetic number, because the mean of its divisors is an integer number (21695899680).

Almost surely, 2^86776632427 is an apocalyptic number.

86776632427 is a deficient number, since it is larger than the sum of its proper divisors (6966293).

86776632427 is a wasteful number, since it uses less digits than its factorization.

86776632427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6966292.

The product of its digits is 28449792, while the sum is 58.

The spelling of 86776632427 in words is "eighty-six billion, seven hundred seventy-six million, six hundred thirty-two thousand, four hundred twenty-seven".