2051857073 has 8 divisors (see below), whose sum is σ = 2345833920. Its totient is φ = 1758093840.

The previous prime is 2051857069. The next prime is 2051857081. The reversal of 2051857073 is 3707581502.

It is a happy number.

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 2051857073 - 2² = 2051857069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051857043) 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, 32258 + ... + 71723.

It is an arithmetic number, because the mean of its divisors is an integer number (293229240).

Almost surely, 2^2051857073 is an apocalyptic number.

It is an amenable number.

2051857073 is a deficient number, since it is larger than the sum of its proper divisors (293976847).

2051857073 is a wasteful number, since it uses less digits than its factorization.

2051857073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106807.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 2051857073 is about 45297.4289888510. The cubic root of 2051857073 is about 1270.7175710068.

The spelling of 2051857073 in words is "two billion, fifty-one million, eight hundred fifty-seven thousand, seventy-three".