18074609461 has 2 divisors, whose sum is σ = 18074609462. Its totient is φ = 18074609460.

The previous prime is 18074609447. The next prime is 18074609507. The reversal of 18074609461 is 16490647081.

It is an a-pointer prime, because the next prime (18074609507) can be obtained adding 18074609461 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12857292100 + 5217317361 = 113390^2 + 72231^2 .

It is an emirp because it is prime and its reverse (16490647081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18074609461 - 2²¹ = 18072512309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18074639461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9037304730 + 9037304731.

It is an arithmetic number, because the mean of its divisors is an integer number (9037304731).

Almost surely, 2^18074609461 is an apocalyptic number.

It is an amenable number.

18074609461 is a deficient number, since it is larger than the sum of its proper divisors (1).

18074609461 is an equidigital number, since it uses as much as digits as its factorization.

18074609461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 18074609461 in words is "eighteen billion, seventy-four million, six hundred nine thousand, four hundred sixty-one".