2781760560 has 40 divisors (see below), whose sum is σ = 8623458480. Its totient is φ = 741802752.

The previous prime is 2781760559. The next prime is 2781760567. The reversal of 2781760560 is 650671872.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2781760567) 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, 5795095 + ... + 5795574.

It is an arithmetic number, because the mean of its divisors is an integer number (215586462).

Almost surely, 2^2781760560 is an apocalyptic number.

2781760560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2781760560 is an abundant number, since it is smaller than the sum of its proper divisors (5841697920).

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

2781760560 is a wasteful number, since it uses less digits than its factorization.

2781760560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11590685 (or 11590679 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 2781760560 is about 52742.3981252275. The cubic root of 2781760560 is about 1406.3926297209.

The spelling of 2781760560 in words is "two billion, seven hundred eighty-one million, seven hundred sixty thousand, five hundred sixty".