2051683617 has 8 divisors (see below), whose sum is σ = 2756460960. Its totient is φ = 1357347680.

The previous prime is 2051683537. The next prime is 2051683649. The reversal of 2051683617 is 7163861502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051683617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2051683657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2609892 + ... + 2610677.

It is an arithmetic number, because the mean of its divisors is an integer number (344557620).

Almost surely, 2^2051683617 is an apocalyptic number.

It is an amenable number.

2051683617 is a deficient number, since it is larger than the sum of its proper divisors (704777343).

2051683617 is a wasteful number, since it uses less digits than its factorization.

2051683617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5220703.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2051683617 is about 45295.5143143336. The cubic root of 2051683617 is about 1270.6817628274.

The spelling of 2051683617 in words is "two billion, fifty-one million, six hundred eighty-three thousand, six hundred seventeen".