8221310751836 has 48 divisors (see below), whose sum is σ = 17708650853376. Its totient is φ = 3252164001984.

The previous prime is 8221310751833. The next prime is 8221310751839. The reversal of 8221310751836 is 6381570131228.

It is an interprime number because it is at equal distance from previous prime (8221310751833) and next prime (8221310751839).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8221310751833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4602125 + ... + 6133691.

It is an arithmetic number, because the mean of its divisors is an integer number (368930226112).

Almost surely, 2^{8221310751836} is an apocalyptic number.

It is an amenable number.

8221310751836 is an abundant number, since it is smaller than the sum of its proper divisors (9487340101540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8221310751836 is a wasteful number, since it uses less digits than its factorization.

8221310751836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546338 (or 1546336 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 8221310751836 in words is "eight trillion, two hundred twenty-one billion, three hundred ten million, seven hundred fifty-one thousand, eight hundred thirty-six".