2745978027680 has 48 divisors (see below), whose sum is σ = 6490599794784. Its totient is φ = 1097844890880.

The previous prime is 2745978027677. The next prime is 2745978027691. The reversal of 2745978027680 is 867208795472.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3945362 + ... + 4588881.

It is an arithmetic number, because the mean of its divisors is an integer number (135220829058).

Almost surely, 2^{2745978027680} is an apocalyptic number.

2745978027680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2745978027680 is an abundant number, since it is smaller than the sum of its proper divisors (3744621767104).

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

2745978027680 is a wasteful number, since it uses less digits than its factorization.

2745978027680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8536269 (or 8536261 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 65.

The spelling of 2745978027680 in words is "two trillion, seven hundred forty-five billion, nine hundred seventy-eight million, twenty-seven thousand, six hundred eighty".