18010472279 has 2 divisors, whose sum is σ = 18010472280. Its totient is φ = 18010472278.

The previous prime is 18010472261. The next prime is 18010472303. The reversal of 18010472279 is 97227401081.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18010472279 is a prime.

It is a super-2 number, since 2×18010472279² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18010472209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9005236139 + 9005236140.

It is an arithmetic number, because the mean of its divisors is an integer number (9005236140).

Almost surely, 2^18010472279 is an apocalyptic number.

18010472279 is a deficient number, since it is larger than the sum of its proper divisors (1).

18010472279 is an equidigital number, since it uses as much as digits as its factorization.

18010472279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 41.

The spelling of 18010472279 in words is "eighteen billion, ten million, four hundred seventy-two thousand, two hundred seventy-nine".