18295393761971 has 2 divisors, whose sum is σ = 18295393761972. Its totient is φ = 18295393761970.

The previous prime is 18295393761949. The next prime is 18295393762039. The reversal of 18295393761971 is 17916739359281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18295393761971 - 2¹⁸ = 18295393499827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18295393761895 and 18295393761904.

It is not a weakly prime, because it can be changed into another prime (18295393767971) 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, 9147696880985 + 9147696880986.

It is an arithmetic number, because the mean of its divisors is an integer number (9147696880986).

Almost surely, 2^{18295393761971} is an apocalyptic number.

18295393761971 is a deficient number, since it is larger than the sum of its proper divisors (1).

18295393761971 is an equidigital number, since it uses as much as digits as its factorization.

18295393761971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 154314720, while the sum is 71.

The spelling of 18295393761971 in words is "eighteen trillion, two hundred ninety-five billion, three hundred ninety-three million, seven hundred sixty-one thousand, nine hundred seventy-one".