6821363436 has 24 divisors (see below), whose sum is σ = 15998989104. Its totient is φ = 2262005760.

The previous prime is 6821363431. The next prime is 6821363447. The reversal of 6821363436 is 6343631286.

It is not an unprimeable number, because it can be changed into a prime (6821363431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1470345 + ... + 1474976.

It is an arithmetic number, because the mean of its divisors is an integer number (666624546).

Almost surely, 2^6821363436 is an apocalyptic number.

It is an amenable number.

6821363436 is an abundant number, since it is smaller than the sum of its proper divisors (9177625668).

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

6821363436 is a wasteful number, since it uses less digits than its factorization.

6821363436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945521 (or 2945519 counting only the distinct ones).

The product of its digits is 373248, while the sum is 42.

The square root of 6821363436 is about 82591.5457901110. The cubic root of 6821363436 is about 1896.5184105124.

The spelling of 6821363436 in words is "six billion, eight hundred twenty-one million, three hundred sixty-three thousand, four hundred thirty-six".