86789512897 has 4 divisors (see below), whose sum is σ = 86828277760. Its totient is φ = 86750748036.

The previous prime is 86789512861. The next prime is 86789512903. The reversal of 86789512897 is 79821598768.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86789512897 - 2¹¹ = 86789510849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86789512097) 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, 19379073 + ... + 19383550.

It is an arithmetic number, because the mean of its divisors is an integer number (21707069440).

Almost surely, 2^86789512897 is an apocalyptic number.

It is an amenable number.

86789512897 is a deficient number, since it is larger than the sum of its proper divisors (38764863).

86789512897 is a wasteful number, since it uses less digits than its factorization.

86789512897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38764862.

The product of its digits is 121927680, while the sum is 70.

The spelling of 86789512897 in words is "eighty-six billion, seven hundred eighty-nine million, five hundred twelve thousand, eight hundred ninety-seven".