15418341361 has 2 divisors, whose sum is σ = 15418341362. Its totient is φ = 15418341360.

The previous prime is 15418341287. The next prime is 15418341377. The reversal of 15418341361 is 16314381451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15414712336 + 3629025 = 124156^2 + 1905^2 .

It is a cyclic number.

It is not a de Polignac number, because 15418341361 - 2²⁹ = 14881470449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15418341361.

It is not a weakly prime, because it can be changed into another prime (15418341391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7709170680 + 7709170681.

It is an arithmetic number, because the mean of its divisors is an integer number (7709170681).

Almost surely, 2^15418341361 is an apocalyptic number.

It is an amenable number.

15418341361 is a deficient number, since it is larger than the sum of its proper divisors (1).

15418341361 is an equidigital number, since it uses as much as digits as its factorization.

15418341361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 37.

The spelling of 15418341361 in words is "fifteen billion, four hundred eighteen million, three hundred forty-one thousand, three hundred sixty-one".