2051702409 has 8 divisors (see below), whose sum is σ = 2896521120. Its totient is φ = 1287342656.

The previous prime is 2051702333. The next prime is 2051702413. The reversal of 2051702409 is 9042071502.

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 2051702409 - 2⁸ = 2051702153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2051702459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20114679 + ... + 20114780.

It is an arithmetic number, because the mean of its divisors is an integer number (362065140).

Almost surely, 2^2051702409 is an apocalyptic number.

It is an amenable number.

2051702409 is a deficient number, since it is larger than the sum of its proper divisors (844818711).

2051702409 is a wasteful number, since it uses less digits than its factorization.

2051702409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40229479.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 2051702409 is about 45295.7217516180. The cubic root of 2051702409 is about 1270.6856423370.

The spelling of 2051702409 in words is "two billion, fifty-one million, seven hundred two thousand, four hundred nine".