2661844848 has 80 divisors (see below), whose sum is σ = 7417504416. Its totient is φ = 817689600.

The previous prime is 2661844847. The next prime is 2661844849. The reversal of 2661844848 is 8484481662.

It is an interprime number because it is at equal distance from previous prime (2661844847) and next prime (2661844849).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2661844848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661844847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419298 + ... + 425598.

Almost surely, 2^2661844848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2661844848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3708752208).

2661844848 is an abundant number, since it is smaller than the sum of its proper divisors (4755659568).

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

2661844848 is a wasteful number, since it uses less digits than its factorization.

2661844848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7002 (or 6996 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 51.

The square root of 2661844848 is about 51593.0697671693. The cubic root of 2661844848 is about 1385.8862288418.

The spelling of 2661844848 in words is "two billion, six hundred sixty-one million, eight hundred forty-four thousand, eight hundred forty-eight".