86223579451 has 4 divisors (see below), whose sum is σ = 90761662600. Its totient is φ = 81685496304.

The previous prime is 86223579443. The next prime is 86223579469. The reversal of 86223579451 is 15497532268.

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 86223579451 - 2³ = 86223579443 is a prime.

It is a super-2 number, since 2×86223579451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86223579751) 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, 2269041546 + ... + 2269041583.

It is an arithmetic number, because the mean of its divisors is an integer number (22690415650).

Almost surely, 2^86223579451 is an apocalyptic number.

86223579451 is a deficient number, since it is larger than the sum of its proper divisors (4538083149).

86223579451 is a wasteful number, since it uses less digits than its factorization.

86223579451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4538083148.

The product of its digits is 3628800, while the sum is 52.

The spelling of 86223579451 in words is "eighty-six billion, two hundred twenty-three million, five hundred seventy-nine thousand, four hundred fifty-one".