42680778773256 has 144 divisors (see below), whose sum is σ = 125173880182260. Its totient is φ = 13132097372160.

The previous prime is 42680778773207. The next prime is 42680778773287. The reversal of 42680778773256 is 65237787708624.

42680778773256 is a `hidden beast` number, since 426 + 8 + 0 + 7 + 7 + 87 + 73 + 2 + 56 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 14381038710756 + 28299740062500 = 3792234^2 + 5319750^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 607598296 + ... + 607668536.

Almost surely, 2^{42680778773256} is an apocalyptic number.

It is an amenable number.

42680778773256 is an abundant number, since it is smaller than the sum of its proper divisors (82493101409004).

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

42680778773256 is a wasteful number, since it uses less digits than its factorization.

42680778773256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120216 (or 120196 counting only the distinct ones).

The product of its (nonzero) digits is 1327656960, while the sum is 72.

The spelling of 42680778773256 in words is "forty-two trillion, six hundred eighty billion, seven hundred seventy-eight million, seven hundred seventy-three thousand, two hundred fifty-six".