2821679930874 has 256 divisors, whose sum is σ = 7115384586240. Its totient is φ = 727833600000.

The previous prime is 2821679930819. The next prime is 2821679930903. The reversal of 2821679930874 is 4780399761282.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2168854024 + ... + 2168855324.

It is an arithmetic number, because the mean of its divisors is an integer number (27794471040).

Almost surely, 2^{2821679930874} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2821679930874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3557692293120).

2821679930874 is an abundant number, since it is smaller than the sum of its proper divisors (4293704655366).

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

2821679930874 is a wasteful number, since it uses less digits than its factorization.

2821679930874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637.

The product of its (nonzero) digits is 73156608, while the sum is 66.

The spelling of 2821679930874 in words is "two trillion, eight hundred twenty-one billion, six hundred seventy-nine million, nine hundred thirty thousand, eight hundred seventy-four".