2858857513 has 4 divisors (see below), whose sum is σ = 3027025620. Its totient is φ = 2690689408.

The previous prime is 2858857493. The next prime is 2858857523. The reversal of 2858857513 is 3157588582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3157588582 = 2 ⋅1578794291.

It can be written as a sum of positive squares in 2 ways, for example, as 1867363369 + 991494144 = 43213^2 + 31488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2858857513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2858857523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84084028 + ... + 84084061.

It is an arithmetic number, because the mean of its divisors is an integer number (756756405).

Almost surely, 2^2858857513 is an apocalyptic number.

It is an amenable number.

2858857513 is a deficient number, since it is larger than the sum of its proper divisors (168168107).

2858857513 is a wasteful number, since it uses less digits than its factorization.

2858857513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168168106.

The product of its digits is 2688000, while the sum is 52.

The square root of 2858857513 is about 53468.2851137008. The cubic root of 2858857513 is about 1419.2672131643.

The spelling of 2858857513 in words is "two billion, eight hundred fifty-eight million, eight hundred fifty-seven thousand, five hundred thirteen".