8258738965 has 4 divisors (see below), whose sum is σ = 9910486764. Its totient is φ = 6606991168.

The previous prime is 8258738951. The next prime is 8258738977. The reversal of 8258738965 is 5698378528.

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 4091649156 + 4167089809 = 63966^2 + 64553^2 .

It is a cyclic number.

It is not a de Polignac number, because 8258738965 - 2⁷ = 8258738837 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, 825873892 + ... + 825873901.

It is an arithmetic number, because the mean of its divisors is an integer number (2477621691).

Almost surely, 2^8258738965 is an apocalyptic number.

It is an amenable number.

8258738965 is a deficient number, since it is larger than the sum of its proper divisors (1651747799).

8258738965 is a wasteful number, since it uses less digits than its factorization.

8258738965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651747798.

The product of its digits is 29030400, while the sum is 61.

The square root of 8258738965 is about 90877.6043093126. The cubic root of 8258738965 is about 2021.3332182430. Note that the first 3 decimals are identical.

The spelling of 8258738965 in words is "eight billion, two hundred fifty-eight million, seven hundred thirty-eight thousand, nine hundred sixty-five".