2793561780 has 24 divisors (see below), whose sum is σ = 7821973152. Its totient is φ = 744949792.

The previous prime is 2793561767. The next prime is 2793561787. The reversal of 2793561780 is 871653972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2793561787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23279622 + ... + 23279741.

It is an arithmetic number, because the mean of its divisors is an integer number (325915548).

Almost surely, 2^2793561780 is an apocalyptic number.

2793561780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2793561780 is an abundant number, since it is smaller than the sum of its proper divisors (5028411372).

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

2793561780 is a wasteful number, since it uses less digits than its factorization.

2793561780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46559375 (or 46559373 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 2793561780 is about 52854.1557495719. The cubic root of 2793561780 is about 1408.3786302281.

The spelling of 2793561780 in words is "two billion, seven hundred ninety-three million, five hundred sixty-one thousand, seven hundred eighty".