2641881461 has 8 divisors (see below), whose sum is σ = 2679096000. Its totient is φ = 2604694752.

The previous prime is 2641881457. The next prime is 2641881479. The reversal of 2641881461 is 1641881462.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2641881461 - 2² = 2641881457 is a prime.

It is a super-3 number, since 3×2641881461³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641811461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250256 + ... + 260598.

It is an arithmetic number, because the mean of its divisors is an integer number (334887000).

Almost surely, 2^2641881461 is an apocalyptic number.

It is an amenable number.

2641881461 is a deficient number, since it is larger than the sum of its proper divisors (37214539).

2641881461 is a wasteful number, since it uses less digits than its factorization.

2641881461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13915.

The product of its digits is 73728, while the sum is 41.

The square root of 2641881461 is about 51399.2359962675. The cubic root of 2641881461 is about 1382.4128935872.

Subtracting from 2641881461 its reverse (1641881462), we obtain a palindrome (999999999).

The spelling of 2641881461 in words is "two billion, six hundred forty-one million, eight hundred eighty-one thousand, four hundred sixty-one".