2261880511 has 4 divisors (see below), whose sum is σ = 2467506024. Its totient is φ = 2056255000.

The previous prime is 2261880503. The next prime is 2261880553. The reversal of 2261880511 is 1150881622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2261880511 - 2³ = 2261880503 is a prime.

It is a super-2 number, since 2×2261880511² = 10232206892083242242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261880571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102812740 + ... + 102812761.

It is an arithmetic number, because the mean of its divisors is an integer number (616876506).

Almost surely, 2^2261880511 is an apocalyptic number.

2261880511 is a deficient number, since it is larger than the sum of its proper divisors (205625513).

2261880511 is a wasteful number, since it uses less digits than its factorization.

2261880511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205625512.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 2261880511 is about 47559.2316064926. The cubic root of 2261880511 is about 1312.6730012440.

The spelling of 2261880511 in words is "two billion, two hundred sixty-one million, eight hundred eighty thousand, five hundred eleven".