18124075679 has 2 divisors, whose sum is σ = 18124075680. Its totient is φ = 18124075678.

The previous prime is 18124075637. The next prime is 18124075733. The reversal of 18124075679 is 97657042181.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18124075679 - 2¹² = 18124071583 is a prime.

It is a super-2 number, since 2×18124075679² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18124075979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9062037839 + 9062037840.

It is an arithmetic number, because the mean of its divisors is an integer number (9062037840).

Almost surely, 2^18124075679 is an apocalyptic number.

18124075679 is a deficient number, since it is larger than the sum of its proper divisors (1).

18124075679 is an equidigital number, since it uses as much as digits as its factorization.

18124075679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 18124075679 in words is "eighteen billion, one hundred twenty-four million, seventy-five thousand, six hundred seventy-nine".