2641034881 has 9 divisors (see below), whose sum is σ = 2806456771. Its totient is φ = 2484857632.

The previous prime is 2641034849. The next prime is 2641034909. The reversal of 2641034881 is 1884301462.

The square root of 2641034881 is 51391.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2056169025 + 584865856 = 45345^2 + 24184^2 .

It is not a de Polignac number, because 2641034881 - 2⁵ = 2641034849 is a prime.

It is a super-2 number, since 2×2641034881² = 13950130485317368322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2641034881.

It is not an unprimeable number, because it can be changed into a prime (2641034831) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 872136 + ... + 875158.

Almost surely, 2^2641034881 is an apocalyptic number.

2641034881 is the 51391-st square number.

2641034881 is the 25696-th centered octagonal number.

It is an amenable number.

2641034881 is a deficient number, since it is larger than the sum of its proper divisors (165421890).

2641034881 is an frugal number, since it uses more digits than its factorization.

2641034881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080 (or 3040 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The cubic root of 2641034881 is about 1382.2652149782.

Multiplying 2641034881 by its product of nonzero digits (36864), we get a square (97359109853184 = 9867072²).

The spelling of 2641034881 in words is "two billion, six hundred forty-one million, thirty-four thousand, eight hundred eighty-one".