86641682399 has 4 divisors (see below), whose sum is σ = 86649314640. Its totient is φ = 86634050160.

The previous prime is 86641682383. The next prime is 86641682429. The reversal of 86641682399 is 99328614668.

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 86641682399 - 2⁴ = 86641682383 is a prime.

It is a super-2 number, since 2×86641682399² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86641682599) 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, 3799067 + ... + 3821804.

It is an arithmetic number, because the mean of its divisors is an integer number (21662328660).

Almost surely, 2^86641682399 is an apocalyptic number.

86641682399 is a deficient number, since it is larger than the sum of its proper divisors (7632241).

86641682399 is a wasteful number, since it uses less digits than its factorization.

86641682399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7632240.

The product of its digits is 26873856, while the sum is 62.

The spelling of 86641682399 in words is "eighty-six billion, six hundred forty-one million, six hundred eighty-two thousand, three hundred ninety-nine".