2856740813 has 8 divisors (see below), whose sum is σ = 2865265536. Its totient is φ = 2848230000.

The previous prime is 2856740773. The next prime is 2856740833. The reversal of 2856740813 is 3180476582.

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 2856740813 - 2¹⁶ = 2856675277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856740833) 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, 516563 + ... + 522063.

It is an arithmetic number, because the mean of its divisors is an integer number (358158192).

Almost surely, 2^2856740813 is an apocalyptic number.

It is an amenable number.

2856740813 is a deficient number, since it is larger than the sum of its proper divisors (8524723).

2856740813 is an equidigital number, since it uses as much as digits as its factorization.

2856740813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6955.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 2856740813 is about 53448.4874715833. The cubic root of 2856740813 is about 1418.9168512185.

The spelling of 2856740813 in words is "two billion, eight hundred fifty-six million, seven hundred forty thousand, eight hundred thirteen".