18112154922577 has 2 divisors, whose sum is σ = 18112154922578. Its totient is φ = 18112154922576.

The previous prime is 18112154922571. The next prime is 18112154922593. The reversal of 18112154922577 is 77522945121181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16328517212736 + 1783637709841 = 4040856^2 + 1335529^2 .

It is a cyclic number.

It is not a de Polignac number, because 18112154922577 - 2¹¹ = 18112154920529 is a prime.

It is not a weakly prime, because it can be changed into another prime (18112154922571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9056077461288 + 9056077461289.

It is an arithmetic number, because the mean of its divisors is an integer number (9056077461289).

Almost surely, 2^{18112154922577} is an apocalyptic number.

It is an amenable number.

18112154922577 is a deficient number, since it is larger than the sum of its proper divisors (1).

18112154922577 is an equidigital number, since it uses as much as digits as its factorization.

18112154922577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2822400, while the sum is 55.

The spelling of 18112154922577 in words is "eighteen trillion, one hundred twelve billion, one hundred fifty-four million, nine hundred twenty-two thousand, five hundred seventy-seven".