2117780202760 has 64 divisors (see below), whose sum is σ = 4972481913600. Its totient is φ = 810231856896.

The previous prime is 2117780202751. The next prime is 2117780202767. The reversal of 2117780202760 is 672020877112.

It is not an unprimeable number, because it can be changed into a prime (2117780202767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17453581 + ... + 17574499.

It is an arithmetic number, because the mean of its divisors is an integer number (77695029900).

Almost surely, 2^{2117780202760} is an apocalyptic number.

2117780202760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2117780202760 is an abundant number, since it is smaller than the sum of its proper divisors (2854701710840).

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

2117780202760 is a wasteful number, since it uses less digits than its factorization.

2117780202760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139990 (or 139986 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 43.

The spelling of 2117780202760 in words is "two trillion, one hundred seventeen billion, seven hundred eighty million, two hundred two thousand, seven hundred sixty".