2661034893824 has 80 divisors (see below), whose sum is σ = 5691568528800. Its totient is φ = 1239125704704.

The previous prime is 2661034893821. The next prime is 2661034893841. The reversal of 2661034893824 is 4283984301662.

It is a super-2 number, since 2×2661034893824² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2661034893824.

It is not an unprimeable number, because it can be changed into a prime (2661034893821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744217 + ... + 2892120.

It is an arithmetic number, because the mean of its divisors is an integer number (71144606610).

Almost surely, 2^{2661034893824} is an apocalyptic number.

It is an amenable number.

2661034893824 is an abundant number, since it is smaller than the sum of its proper divisors (3030533634976).

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

2661034893824 is an equidigital number, since it uses as much as digits as its factorization.

2661034893824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636433 (or 4636417 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 56.

The spelling of 2661034893824 in words is "two trillion, six hundred sixty-one billion, thirty-four million, eight hundred ninety-three thousand, eight hundred twenty-four".