5261740765 has 4 divisors (see below), whose sum is σ = 6314088924. Its totient is φ = 4209392608.

The previous prime is 5261740747. The next prime is 5261740777. The reversal of 5261740765 is 5670471625.

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 2991980601 + 2269760164 = 54699^2 + 47642^2 .

It is a cyclic number.

It is not a de Polignac number, because 5261740765 - 2²⁵ = 5228186333 is a prime.

It is a Duffinian number.

It is a congruent 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, 526174072 + ... + 526174081.

It is an arithmetic number, because the mean of its divisors is an integer number (1578522231).

Almost surely, 2^5261740765 is an apocalyptic number.

It is an amenable number.

5261740765 is a deficient number, since it is larger than the sum of its proper divisors (1052348159).

5261740765 is a wasteful number, since it uses less digits than its factorization.

5261740765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052348158.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 5261740765 is about 72537.8574607770. The cubic root of 5261740765 is about 1739.3079518776.

The spelling of 5261740765 in words is "five billion, two hundred sixty-one million, seven hundred forty thousand, seven hundred sixty-five".