2780864378080 has 48 divisors (see below), whose sum is σ = 6572552251104. Its totient is φ = 1111878423040.

The previous prime is 2780864378059. The next prime is 2780864378099. The reversal of 2780864378080 is 808734680872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3268852 + ... + 4030771.

It is an arithmetic number, because the mean of its divisors is an integer number (136928171898).

Almost surely, 2^{2780864378080} is an apocalyptic number.

2780864378080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2780864378080 is an abundant number, since it is smaller than the sum of its proper divisors (3791687873024).

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

2780864378080 is a wasteful number, since it uses less digits than its factorization.

2780864378080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7302019 (or 7302011 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 61.

The spelling of 2780864378080 in words is "two trillion, seven hundred eighty billion, eight hundred sixty-four million, three hundred seventy-eight thousand, eighty".