17551790461 has 2 divisors, whose sum is σ = 17551790462. Its totient is φ = 17551790460.

The previous prime is 17551790419. The next prime is 17551790479. The reversal of 17551790461 is 16409715571.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11086826436 + 6464964025 = 105294^2 + 80405^2 .

It is an emirp because it is prime and its reverse (16409715571) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17551790461 - 2²⁹ = 17014919549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17551793461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8775895230 + 8775895231.

It is an arithmetic number, because the mean of its divisors is an integer number (8775895231).

Almost surely, 2^17551790461 is an apocalyptic number.

It is an amenable number.

17551790461 is a deficient number, since it is larger than the sum of its proper divisors (1).

17551790461 is an equidigital number, since it uses as much as digits as its factorization.

17551790461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 46.

The spelling of 17551790461 in words is "seventeen billion, five hundred fifty-one million, seven hundred ninety thousand, four hundred sixty-one".