86541368431 has 4 divisors (see below), whose sum is σ = 98904421072. Its totient is φ = 74178315792.

The previous prime is 86541368383. The next prime is 86541368449. The reversal of 86541368431 is 13486314568.

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

It is a de Polignac number, because none of the positive numbers 2^k-86541368431 is a prime.

It is a super-2 number, since 2×86541368431² (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 (86541368471) 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, 6181526310 + ... + 6181526323.

It is an arithmetic number, because the mean of its divisors is an integer number (24726105268).

Almost surely, 2^86541368431 is an apocalyptic number.

86541368431 is a deficient number, since it is larger than the sum of its proper divisors (12363052641).

86541368431 is a wasteful number, since it uses less digits than its factorization.

86541368431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12363052640.

The product of its digits is 1658880, while the sum is 49.

The spelling of 86541368431 in words is "eighty-six billion, five hundred forty-one million, three hundred sixty-eight thousand, four hundred thirty-one".