2136557800 has 48 divisors (see below), whose sum is σ = 5349618540. Its totient is φ = 788881920.

The previous prime is 2136557777. The next prime is 2136557833. The reversal of 2136557800 is 87556312.

It can be written as a sum of positive squares in 6 ways, for example, as 294259716 + 1842298084 = 17154^2 + 42922^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2136557800.

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 11 ways as a sum of consecutive naturals, for example, 408277 + ... + 413476.

Almost surely, 2^2136557800 is an apocalyptic number.

2136557800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2136557800 is an abundant number, since it is smaller than the sum of its proper divisors (3213060740).

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

2136557800 is a wasteful number, since it uses less digits than its factorization.

2136557800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821782 (or 821773 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 2136557800 is about 46222.9142309310. The cubic root of 2136557800 is about 1287.9674338820.

The spelling of 2136557800 in words is "two billion, one hundred thirty-six million, five hundred fifty-seven thousand, eight hundred".