5164764071785 has 4 divisors (see below), whose sum is σ = 6197716886148. Its totient is φ = 4131811257424.

The previous prime is 5164764071771. The next prime is 5164764071821. The reversal of 5164764071785 is 5871704674615.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2701079102016 + 2463684969769 = 1643496^2 + 1569613^2 .

It is a cyclic number.

It is not a de Polignac number, because 5164764071785 - 2⁷ = 5164764071657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516476407174 + ... + 516476407183.

It is an arithmetic number, because the mean of its divisors is an integer number (1549429221537).

Almost surely, 2^{5164764071785} is an apocalyptic number.

It is an amenable number.

5164764071785 is a deficient number, since it is larger than the sum of its proper divisors (1032952814363).

5164764071785 is a wasteful number, since it uses less digits than its factorization.

5164764071785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032952814362.

The product of its (nonzero) digits is 39513600, while the sum is 61.

The spelling of 5164764071785 in words is "five trillion, one hundred sixty-four billion, seven hundred sixty-four million, seventy-one thousand, seven hundred eighty-five".