18275315815007 has 2 divisors, whose sum is σ = 18275315815008. Its totient is φ = 18275315815006.

The previous prime is 18275315814991. The next prime is 18275315815021. The reversal of 18275315815007 is 70051851357281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18275315815007 - 2⁴ = 18275315814991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18275315815007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18275315875007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9137657907503 + 9137657907504.

It is an arithmetic number, because the mean of its divisors is an integer number (9137657907504).

Almost surely, 2^{18275315815007} is an apocalyptic number.

18275315815007 is a deficient number, since it is larger than the sum of its proper divisors (1).

18275315815007 is an equidigital number, since it uses as much as digits as its factorization.

18275315815007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352000, while the sum is 53.

The spelling of 18275315815007 in words is "eighteen trillion, two hundred seventy-five billion, three hundred fifteen million, eight hundred fifteen thousand, seven".