2731367780 has 24 divisors (see below), whose sum is σ = 5788499640. Its totient is φ = 1082522880.

The previous prime is 2731367777. The next prime is 2731367789. The reversal of 2731367780 is 877631372.

2731367780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 397125184 + 2334242596 = 19928^2 + 48314^2 .

It is not an unprimeable number, because it can be changed into a prime (2731367789) 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, 624281 + ... + 628640.

It is an arithmetic number, because the mean of its divisors is an integer number (241187485).

Almost surely, 2^2731367780 is an apocalyptic number.

2731367780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2731367780 is an abundant number, since it is smaller than the sum of its proper divisors (3057131860).

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

2731367780 is a wasteful number, since it uses less digits than its factorization.

2731367780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253039 (or 1253037 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 2731367780 is about 52262.4892250647. The cubic root of 2731367780 is about 1397.8483581289.

The spelling of 2731367780 in words is "two billion, seven hundred thirty-one million, three hundred sixty-seven thousand, seven hundred eighty".