2051857074 has 8 divisors (see below), whose sum is σ = 4103714160. Its totient is φ = 683952356.

The previous prime is 2051857069. The next prime is 2051857081. The reversal of 2051857074 is 4707581502.

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

2051857074 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 170988084 + ... + 170988095.

It is an arithmetic number, because the mean of its divisors is an integer number (512964270).

Almost surely, 2^2051857074 is an apocalyptic number.

2051857074 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2051857074 is a wasteful number, since it uses less digits than its factorization.

2051857074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341976184.

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 2051857074 is about 45297.4289998892. The cubic root of 2051857074 is about 1270.7175712132.

The spelling of 2051857074 in words is "two billion, fifty-one million, eight hundred fifty-seven thousand, seventy-four".