1078749908778 has 8 divisors (see below), whose sum is σ = 2157499817568. Its totient is φ = 359583302924.

The previous prime is 1078749908767. The next prime is 1078749908849. The reversal of 1078749908778 is 8778099478701.

1078749908778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

1078749908778 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89895825726 + ... + 89895825737.

It is an arithmetic number, because the mean of its divisors is an integer number (269687477196).

Almost surely, 2^{1078749908778} is an apocalyptic number.

1078749908778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1078749908778 is a wasteful number, since it uses less digits than its factorization.

1078749908778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179791651468.

The product of its (nonzero) digits is 398297088, while the sum is 75.

The spelling of 1078749908778 in words is "one trillion, seventy-eight billion, seven hundred forty-nine million, nine hundred eight thousand, seven hundred seventy-eight".