2778008525780 has 24 divisors (see below), whose sum is σ = 5855999732352. Its totient is φ = 1106978300192.

The previous prime is 2778008525729. The next prime is 2778008525807. The reversal of 2778008525780 is 875258008772.

It is a happy number.

2778008525780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 264063992 + ... + 264074511.

It is an arithmetic number, because the mean of its divisors is an integer number (243999988848).

Almost surely, 2^{2778008525780} is an apocalyptic number.

2778008525780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2778008525780 is an abundant number, since it is smaller than the sum of its proper divisors (3077991206572).

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

2778008525780 is a wasteful number, since it uses less digits than its factorization.

2778008525780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528138775 (or 528138773 counting only the distinct ones).

The product of its (nonzero) digits is 17561600, while the sum is 59.

The spelling of 2778008525780 in words is "two trillion, seven hundred seventy-eight billion, eight million, five hundred twenty-five thousand, seven hundred eighty".