86123724724799 has 4 divisors (see below), whose sum is σ = 86124029006736. Its totient is φ = 86123420442864.

The previous prime is 86123724724777. The next prime is 86123724724801. The reversal of 86123724724799 is 99742742732168.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86123724724799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86123724724769) 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, 151716014 + ... + 152282619.

It is an arithmetic number, because the mean of its divisors is an integer number (21531007251684).

Almost surely, 2^{86123724724799} is an apocalyptic number.

86123724724799 is a deficient number, since it is larger than the sum of its proper divisors (304281937).

86123724724799 is a wasteful number, since it uses less digits than its factorization.

86123724724799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304281936.

The product of its digits is 512096256, while the sum is 71.

The spelling of 86123724724799 in words is "eighty-six trillion, one hundred twenty-three billion, seven hundred twenty-four million, seven hundred twenty-four thousand, seven hundred ninety-nine".