2133567780 has 24 divisors (see below), whose sum is σ = 5973989952. Its totient is φ = 568951392.

The previous prime is 2133567749. The next prime is 2133567809. The reversal of 2133567780 is 877653312.

It is a super-2 number, since 2×2133567780² = 9104222943708256800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 17779672 + ... + 17779791.

It is an arithmetic number, because the mean of its divisors is an integer number (248916248).

Almost surely, 2^2133567780 is an apocalyptic number.

2133567780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133567780 is an abundant number, since it is smaller than the sum of its proper divisors (3840422172).

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

2133567780 is a wasteful number, since it uses less digits than its factorization.

2133567780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35559475 (or 35559473 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 2133567780 is about 46190.5594250600. The cubic root of 2133567780 is about 1287.3663351984.

The spelling of 2133567780 in words is "two billion, one hundred thirty-three million, five hundred sixty-seven thousand, seven hundred eighty".