2611961143 has 8 divisors (see below), whose sum is σ = 2859929856. Its totient is φ = 2365745400.

The previous prime is 2611961137. The next prime is 2611961171. The reversal of 2611961143 is 3411691162.

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 2611961143 - 2²⁹ = 2075090231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2611961099 and 2611961108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2611961173) 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, 435121 + ... + 441082.

It is an arithmetic number, because the mean of its divisors is an integer number (357491232).

Almost surely, 2^2611961143 is an apocalyptic number.

2611961143 is a deficient number, since it is larger than the sum of its proper divisors (247968713).

2611961143 is a wasteful number, since it uses less digits than its factorization.

2611961143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876485.

The product of its digits is 7776, while the sum is 34.

The square root of 2611961143 is about 51107.3492073303. The cubic root of 2611961143 is about 1377.1742821855.

The spelling of 2611961143 in words is "two billion, six hundred eleven million, nine hundred sixty-one thousand, one hundred forty-three".