2821026864 has 20 divisors (see below), whose sum is σ = 7287652856. Its totient is φ = 940342272.

The previous prime is 2821026863. The next prime is 2821026907. The reversal of 2821026864 is 4686201282.

It is not an unprimeable number, because it can be changed into a prime (2821026863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29385649 + ... + 29385744.

Almost surely, 2^2821026864 is an apocalyptic number.

2821026864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2821026864 is an abundant number, since it is smaller than the sum of its proper divisors (4466625992).

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

2821026864 is a wasteful number, since it uses less digits than its factorization.

2821026864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58771404 (or 58771398 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 2821026864 is about 53113.3397933137. The cubic root of 2821026864 is about 1412.9791083520.

The spelling of 2821026864 in words is "two billion, eight hundred twenty-one million, twenty-six thousand, eight hundred sixty-four".