86912641291 has 4 divisors (see below), whose sum is σ = 99328732912. Its totient is φ = 74496549672.

The previous prime is 86912641273. The next prime is 86912641327. The reversal of 86912641291 is 19214621968.

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 86912641291 - 2¹¹ = 86912639243 is a prime.

It is the 294810-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86112641291) by changing a digit.

It is a nontrivial repunit in base 294809.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6208045800 + ... + 6208045813.

It is an arithmetic number, because the mean of its divisors is an integer number (24832183228).

Almost surely, 2^86912641291 is an apocalyptic number.

86912641291 is a deficient number, since it is larger than the sum of its proper divisors (12416091621).

86912641291 is a wasteful number, since it uses less digits than its factorization.

86912641291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12416091620.

The product of its digits is 373248, while the sum is 49.

The spelling of 86912641291 in words is "eighty-six billion, nine hundred twelve million, six hundred forty-one thousand, two hundred ninety-one".