2678597559378 has 64 divisors (see below), whose sum is σ = 6631364476800. Its totient is φ = 795763725120.

The previous prime is 2678597559367. The next prime is 2678597559409. The reversal of 2678597559378 is 8739557958762.

2678597559378 is a `hidden beast` number, since 2 + 6 + 7 + 8 + 59 + 7 + 559 + 3 + 7 + 8 = 666.

2678597559378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2678597559297 and 2678597559306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65766988 + ... + 65807703.

It is an arithmetic number, because the mean of its divisors is an integer number (103615069950).

Almost surely, 2^{2678597559378} is an apocalyptic number.

2678597559378 is an abundant number, since it is smaller than the sum of its proper divisors (3952766917422).

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

2678597559378 is a wasteful number, since it uses less digits than its factorization.

2678597559378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131574744 (or 131574738 counting only the distinct ones).

The product of its digits is 8001504000, while the sum is 81.

The spelling of 2678597559378 in words is "two trillion, six hundred seventy-eight billion, five hundred ninety-seven million, five hundred fifty-nine thousand, three hundred seventy-eight".