86650968977 has 4 divisors (see below), whose sum is σ = 87624575460. Its totient is φ = 85677362496.

The previous prime is 86650968973. The next prime is 86650969003. The reversal of 86650968977 is 77986905668.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17090071441 + 69560897536 = 130729^2 + 263744^2 .

It is a cyclic number.

It is not a de Polignac number, because 86650968977 - 2² = 86650968973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86650968977.

It is not an unprimeable number, because it can be changed into a prime (86650968973) 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, 486803108 + ... + 486803285.

It is an arithmetic number, because the mean of its divisors is an integer number (21906143865).

Almost surely, 2^86650968977 is an apocalyptic number.

It is an amenable number.

86650968977 is a deficient number, since it is larger than the sum of its proper divisors (973606483).

86650968977 is an equidigital number, since it uses as much as digits as its factorization.

86650968977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973606482.

The product of its (nonzero) digits is 274337280, while the sum is 71.

The spelling of 86650968977 in words is "eighty-six billion, six hundred fifty million, nine hundred sixty-eight thousand, nine hundred seventy-seven".