1086678607978 has 8 divisors (see below), whose sum is σ = 1630664495460. Its totient is φ = 543123776160.

The previous prime is 1086678607957. The next prime is 1086678607979. The reversal of 1086678607978 is 8797068766801.

1086678607978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 590151213369 + 496527394609 = 768213^2 + 704647^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1086678607978.

It is not an unprimeable number, because it can be changed into a prime (1086678607979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107757613 + ... + 107767696.

Almost surely, 2^{1086678607978} is an apocalyptic number.

1086678607978 is a deficient number, since it is larger than the sum of its proper divisors (543985887482).

1086678607978 is a wasteful number, since it uses less digits than its factorization.

1086678607978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215527832.

The product of its (nonzero) digits is 341397504, while the sum is 73.

The spelling of 1086678607978 in words is "one trillion, eighty-six billion, six hundred seventy-eight million, six hundred seven thousand, nine hundred seventy-eight".