18473814507077 has 2 divisors, whose sum is σ = 18473814507078. Its totient is φ = 18473814507076.

The previous prime is 18473814507073. The next prime is 18473814507193. The reversal of 18473814507077 is 77070541837481.

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., 16627914574756 + 1845899932321 = 4077734^2 + 1358639^2 .

It is a cyclic number.

It is not a de Polignac number, because 18473814507077 - 2² = 18473814507073 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18473814507073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9236907253538 + 9236907253539.

It is an arithmetic number, because the mean of its divisors is an integer number (9236907253539).

Almost surely, 2^{18473814507077} is an apocalyptic number.

It is an amenable number.

18473814507077 is a deficient number, since it is larger than the sum of its proper divisors (1).

18473814507077 is an equidigital number, since it uses as much as digits as its factorization.

18473814507077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36879360, while the sum is 62.

The spelling of 18473814507077 in words is "eighteen trillion, four hundred seventy-three billion, eight hundred fourteen million, five hundred seven thousand, seventy-seven".