2049296861 has 4 divisors (see below), whose sum is σ = 2119962300. Its totient is φ = 1978631424.

The previous prime is 2049296833. The next prime is 2049296957. The reversal of 2049296861 is 1686929402.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1321322500 + 727974361 = 36350^2 + 26981^2 .

It is a cyclic number.

It is not a de Polignac number, because 2049296861 - 2¹⁴ = 2049280477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2049296831) 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, 35332676 + ... + 35332733.

It is an arithmetic number, because the mean of its divisors is an integer number (529990575).

Almost surely, 2^2049296861 is an apocalyptic number.

It is an amenable number.

2049296861 is a deficient number, since it is larger than the sum of its proper divisors (70665439).

2049296861 is an equidigital number, since it uses as much as digits as its factorization.

2049296861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70665438.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 2049296861 is about 45269.1601534643. The cubic root of 2049296861 is about 1270.1888369048.

The spelling of 2049296861 in words is "two billion, forty-nine million, two hundred ninety-six thousand, eight hundred sixty-one".