5405137817 has 4 divisors (see below), whose sum is σ = 5405364516. Its totient is φ = 5404911120.

The previous prime is 5405137807. The next prime is 5405137819. The reversal of 5405137817 is 7187315045.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7187315045 = 5 ⋅1437463009.

It can be written as a sum of positive squares in 2 ways, for example, as 2969814016 + 2435323801 = 54496^2 + 49349^2 .

It is a cyclic number.

It is not a de Polignac number, because 5405137817 - 2²⁰ = 5404089241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5405137819) 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 in 3 ways as a sum of consecutive naturals, for example, 72734 + ... + 126887.

It is an arithmetic number, because the mean of its divisors is an integer number (1351341129).

Almost surely, 2^5405137817 is an apocalyptic number.

It is an amenable number.

5405137817 is a deficient number, since it is larger than the sum of its proper divisors (226699).

5405137817 is a wasteful number, since it uses less digits than its factorization.

5405137817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226698.

The product of its (nonzero) digits is 117600, while the sum is 41.

The square root of 5405137817 is about 73519.6423889562. The cubic root of 5405137817 is about 1754.9668764835.

The spelling of 5405137817 in words is "five billion, four hundred five million, one hundred thirty-seven thousand, eight hundred seventeen".