18276472562149 has 2 divisors, whose sum is σ = 18276472562150. Its totient is φ = 18276472562148.

The previous prime is 18276472562143. The next prime is 18276472562177. The reversal of 18276472562149 is 94126527467281.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17957380888225 + 319091673924 = 4237615^2 + 564882^2 .

It is a cyclic number.

It is not a de Polignac number, because 18276472562149 - 2⁹ = 18276472561637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18276472562143) 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, 9138236281074 + 9138236281075.

It is an arithmetic number, because the mean of its divisors is an integer number (9138236281075).

Almost surely, 2^{18276472562149} is an apocalyptic number.

It is an amenable number.

18276472562149 is a deficient number, since it is larger than the sum of its proper divisors (1).

18276472562149 is an equidigital number, since it uses as much as digits as its factorization.

18276472562149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81285120, while the sum is 64.

The spelling of 18276472562149 in words is "eighteen trillion, two hundred seventy-six billion, four hundred seventy-two million, five hundred sixty-two thousand, one hundred forty-nine".