2780738063560 has 16 divisors (see below), whose sum is σ = 6256660643100. Its totient is φ = 1112295225408.

The previous prime is 2780738063491. The next prime is 2780738063581. The reversal of 2780738063560 is 653608370872.

It can be written as a sum of positive squares in 2 ways, for example, as 2533846341636 + 246891721924 = 1591806^2 + 496882^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34759225755 + ... + 34759225834.

Almost surely, 2^{2780738063560} is an apocalyptic number.

2780738063560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2780738063560 is an abundant number, since it is smaller than the sum of its proper divisors (3475922579540).

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

2780738063560 is a wasteful number, since it uses less digits than its factorization.

2780738063560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69518451600 (or 69518451596 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 2780738063560 in words is "two trillion, seven hundred eighty billion, seven hundred thirty-eight million, sixty-three thousand, five hundred sixty".