2731378560 has 64 divisors (see below), whose sum is σ = 8706275280. Its totient is φ = 728367104.

The previous prime is 2731378553. The next prime is 2731378577. The reversal of 2731378560 is 658731372.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709377 + ... + 713216.

Almost surely, 2^2731378560 is an apocalyptic number.

2731378560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2731378560 is an abundant number, since it is smaller than the sum of its proper divisors (5974896720).

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

2731378560 is a wasteful number, since it uses less digits than its factorization.

2731378560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422615 (or 1422603 counting only the distinct ones).

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

The square root of 2731378560 is about 52262.5923582059. The cubic root of 2731378560 is about 1397.8501971080.

The spelling of 2731378560 in words is "two billion, seven hundred thirty-one million, three hundred seventy-eight thousand, five hundred sixty".