1078404835664 has 80 divisors (see below), whose sum is σ = 2351692648704. Its totient is φ = 475329254400.

The previous prime is 1078404835663. The next prime is 1078404835699. The reversal of 1078404835664 is 4665384048701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078404835663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2840084 + ... + 3197324.

Almost surely, 2^{1078404835664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1078404835664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1175846324352).

1078404835664 is an abundant number, since it is smaller than the sum of its proper divisors (1273287813040).

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

1078404835664 is a wasteful number, since it uses less digits than its factorization.

1078404835664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357916 (or 357910 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 56.

The spelling of 1078404835664 in words is "one trillion, seventy-eight billion, four hundred four million, eight hundred thirty-five thousand, six hundred sixty-four".