17450391061 has 2 divisors, whose sum is σ = 17450391062. Its totient is φ = 17450391060.

The previous prime is 17450391053. The next prime is 17450391089. The reversal of 17450391061 is 16019305471.

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., 16633002961 + 817388100 = 128969^2 + 28590^2 .

It is a cyclic number.

It is not a de Polignac number, because 17450391061 - 2³ = 17450391053 is a prime.

It is a super-2 number, since 2×17450391061² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 17450391061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17450391031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8725195530 + 8725195531.

It is an arithmetic number, because the mean of its divisors is an integer number (8725195531).

Almost surely, 2^17450391061 is an apocalyptic number.

It is an amenable number.

17450391061 is a deficient number, since it is larger than the sum of its proper divisors (1).

17450391061 is an equidigital number, since it uses as much as digits as its factorization.

17450391061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 17450391061 in words is "seventeen billion, four hundred fifty million, three hundred ninety-one thousand, sixty-one".