4056857851 has 8 divisors (see below), whose sum is σ = 4071032064. Its totient is φ = 4042698600.

The previous prime is 4056857843. The next prime is 4056857867. The reversal of 4056857851 is 1587586504.

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 4056857851 - 2³ = 4056857843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4056857795 and 4056857804.

It is not an unprimeable number, because it can be changed into a prime (4056857801) 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, 882906 + ... + 887488.

It is an arithmetic number, because the mean of its divisors is an integer number (508879008).

Almost surely, 2^4056857851 is an apocalyptic number.

4056857851 is a deficient number, since it is larger than the sum of its proper divisors (14174213).

4056857851 is a wasteful number, since it uses less digits than its factorization.

4056857851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7481.

The product of its (nonzero) digits is 1344000, while the sum is 49.

The square root of 4056857851 is about 63693.4678832924. The cubic root of 4056857851 is about 1594.8870444735.

The spelling of 4056857851 in words is "four billion, fifty-six million, eight hundred fifty-seven thousand, eight hundred fifty-one".