7868631533 has 12 divisors (see below), whose sum is σ = 9366176160. Its totient is φ = 6587689752.

The previous prime is 7868631521. The next prime is 7868631539. The reversal of 7868631533 is 3351368687.

It is a happy number.

It is not a de Polignac number, because 7868631533 - 2⁴ = 7868631517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7868631539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1865153 + ... + 1869366.

It is an arithmetic number, because the mean of its divisors is an integer number (780514680).

Almost surely, 2^7868631533 is an apocalyptic number.

It is an amenable number.

7868631533 is a deficient number, since it is larger than the sum of its proper divisors (1497544627).

7868631533 is a wasteful number, since it uses less digits than its factorization.

7868631533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734576 (or 3734569 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The square root of 7868631533 is about 88705.3072425771. The cubic root of 7868631533 is about 1988.9921525515.

The spelling of 7868631533 in words is "seven billion, eight hundred sixty-eight million, six hundred thirty-one thousand, five hundred thirty-three".