18340005040537 has 2 divisors, whose sum is σ = 18340005040538. Its totient is φ = 18340005040536.

The previous prime is 18340005040531. The next prime is 18340005040543. The reversal of 18340005040537 is 73504050004381.

It is a balanced prime because it is at equal distance from previous prime (18340005040531) and next prime (18340005040543).

It can be written as a sum of positive squares in only one way, i.e., 15655466976601 + 2684538063936 = 3956699^2 + 1638456^2 .

It is a cyclic number.

It is not a de Polignac number, because 18340005040537 - 2³ = 18340005040529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18340005040537.

It is not a weakly prime, because it can be changed into another prime (18340005040531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9170002520268 + 9170002520269.

It is an arithmetic number, because the mean of its divisors is an integer number (9170002520269).

Almost surely, 2^{18340005040537} is an apocalyptic number.

It is an amenable number.

18340005040537 is a deficient number, since it is larger than the sum of its proper divisors (1).

18340005040537 is an equidigital number, since it uses as much as digits as its factorization.

18340005040537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 18340005040537 in words is "eighteen trillion, three hundred forty billion, five million, forty thousand, five hundred thirty-seven".