2561876849796 has 48 divisors (see below), whose sum is σ = 6535995755520. Its totient is φ = 774557903520.

The previous prime is 2561876849743. The next prime is 2561876849849. The reversal of 2561876849796 is 6979486781652.

It is an interprime number because it is at equal distance from previous prime (2561876849743) and next prime (2561876849849).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22047016 + ... + 22162911.

It is an arithmetic number, because the mean of its divisors is an integer number (136166578240).

Almost surely, 2^{2561876849796} is an apocalyptic number.

It is an amenable number.

2561876849796 is an abundant number, since it is smaller than the sum of its proper divisors (3974118905724).

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

2561876849796 is a wasteful number, since it uses less digits than its factorization.

2561876849796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44210384 (or 44210382 counting only the distinct ones).

The product of its digits is 2194698240, while the sum is 78.

The spelling of 2561876849796 in words is "two trillion, five hundred sixty-one billion, eight hundred seventy-six million, eight hundred forty-nine thousand, seven hundred ninety-six".