2011461761 has 4 divisors (see below), whose sum is σ = 2011657152. Its totient is φ = 2011266372.

The previous prime is 2011461731. The next prime is 2011461769. The reversal of 2011461761 is 1671641102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2011461761 - 2¹⁴ = 2011445377 is a prime.

It is a super-2 number, since 2×2011461761² = 8091956831930442242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011461769) 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, 81341 + ... + 103146.

It is an arithmetic number, because the mean of its divisors is an integer number (502914288).

Almost surely, 2^2011461761 is an apocalyptic number.

It is an amenable number.

2011461761 is a deficient number, since it is larger than the sum of its proper divisors (195391).

2011461761 is a wasteful number, since it uses less digits than its factorization.

2011461761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195390.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2011461761 is about 44849.3228599942. The cubic root of 2011461761 is about 1262.3232857390.

The spelling of 2011461761 in words is "two billion, eleven million, four hundred sixty-one thousand, seven hundred sixty-one".