2857387636 has 12 divisors (see below), whose sum is σ = 5002421760. Its totient is φ = 1428124280.

The previous prime is 2857387633. The next prime is 2857387639. The reversal of 2857387636 is 6367837582.

It is an interprime number because it is at equal distance from previous prime (2857387633) and next prime (2857387639).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857387633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130996 + ... + 151243.

It is an arithmetic number, because the mean of its divisors is an integer number (416868480).

Almost surely, 2^2857387636 is an apocalyptic number.

It is an amenable number.

2857387636 is a deficient number, since it is larger than the sum of its proper divisors (2145034124).

2857387636 is a wasteful number, since it uses less digits than its factorization.

2857387636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284774 (or 284772 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 55.

The square root of 2857387636 is about 53454.5380299933. The cubic root of 2857387636 is about 1419.0239334793.

The spelling of 2857387636 in words is "two billion, eight hundred fifty-seven million, three hundred eighty-seven thousand, six hundred thirty-six".