86224721873 has 4 divisors (see below), whose sum is σ = 89973622848. Its totient is φ = 82475820900.

The previous prime is 86224721861. The next prime is 86224721887. The reversal of 86224721873 is 37812742268.

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 86224721873 - 2⁴ = 86224721857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86224721833) 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, 1874450453 + ... + 1874450498.

It is an arithmetic number, because the mean of its divisors is an integer number (22493405712).

Almost surely, 2^86224721873 is an apocalyptic number.

It is an amenable number.

86224721873 is a deficient number, since it is larger than the sum of its proper divisors (3748900975).

86224721873 is a wasteful number, since it uses less digits than its factorization.

86224721873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748900974.

The product of its digits is 1806336, while the sum is 50.

The spelling of 86224721873 in words is "eighty-six billion, two hundred twenty-four million, seven hundred twenty-one thousand, eight hundred seventy-three".