2133678836 has 6 divisors (see below), whose sum is σ = 3733937970. Its totient is φ = 1066839416.

The previous prime is 2133678817. The next prime is 2133678839. The reversal of 2133678836 is 6388763312.

It can be written as a sum of positive squares in only one way, i.e., 1510876900 + 622801936 = 38870^2 + 24956^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133678839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266709851 + ... + 266709858.

It is an arithmetic number, because the mean of its divisors is an integer number (622322995).

Almost surely, 2^2133678836 is an apocalyptic number.

It is an amenable number.

2133678836 is a deficient number, since it is larger than the sum of its proper divisors (1600259134).

2133678836 is a wasteful number, since it uses less digits than its factorization.

2133678836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533419713 (or 533419711 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The square root of 2133678836 is about 46191.7615598280. The cubic root of 2133678836 is about 1287.3886713805.

The spelling of 2133678836 in words is "two billion, one hundred thirty-three million, six hundred seventy-eight thousand, eight hundred thirty-six".