8312813651 has 2 divisors, whose sum is σ = 8312813652. Its totient is φ = 8312813650.

The previous prime is 8312813627. The next prime is 8312813659. The reversal of 8312813651 is 1563182138.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8312813651 is a prime.

It is not a weakly prime, because it can be changed into another prime (8312813659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4156406825 + 4156406826.

It is an arithmetic number, because the mean of its divisors is an integer number (4156406826).

Almost surely, 2^8312813651 is an apocalyptic number.

8312813651 is a deficient number, since it is larger than the sum of its proper divisors (1).

8312813651 is an equidigital number, since it uses as much as digits as its factorization.

8312813651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 8312813651 is about 91174.6327165621. The cubic root of 8312813651 is about 2025.7352327720.

Adding to 8312813651 its reverse (1563182138), we get a palindrome (9875995789).

The spelling of 8312813651 in words is "eight billion, three hundred twelve million, eight hundred thirteen thousand, six hundred fifty-one".