8313138875645 has 4 divisors (see below), whose sum is σ = 9975766650780. Its totient is φ = 6650511100512.

The previous prime is 8313138875603. The next prime is 8313138875651. The reversal of 8313138875645 is 5465788313138.

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 3480026823289 + 4833112052356 = 1865483^2 + 2198434^2 .

It is a cyclic number.

It is not a de Polignac number, because 8313138875645 - 2⁶ = 8313138875581 is a prime.

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, 831313887560 + ... + 831313887569.

It is an arithmetic number, because the mean of its divisors is an integer number (2493941662695).

Almost surely, 2^{8313138875645} is an apocalyptic number.

It is an amenable number.

8313138875645 is a deficient number, since it is larger than the sum of its proper divisors (1662627775135).

8313138875645 is a wasteful number, since it uses less digits than its factorization.

8313138875645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662627775134.

The product of its digits is 58060800, while the sum is 62.

The spelling of 8313138875645 in words is "eight trillion, three hundred thirteen billion, one hundred thirty-eight million, eight hundred seventy-five thousand, six hundred forty-five".