2061737291 has 4 divisors (see below), whose sum is σ = 2170249800. Its totient is φ = 1953224784.

The previous prime is 2061737269. The next prime is 2061737299. The reversal of 2061737291 is 1927371602.

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 2061737291 - 2¹⁰ = 2061736267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2061737299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54256226 + ... + 54256263.

It is an arithmetic number, because the mean of its divisors is an integer number (542562450).

Almost surely, 2^2061737291 is an apocalyptic number.

2061737291 is a deficient number, since it is larger than the sum of its proper divisors (108512509).

2061737291 is a wasteful number, since it uses less digits than its factorization.

2061737291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108512508.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 2061737291 is about 45406.3573852825. The cubic root of 2061737291 is about 1272.7539163131.

The spelling of 2061737291 in words is "two billion, sixty-one million, seven hundred thirty-seven thousand, two hundred ninety-one".