1078128856 has 32 divisors (see below), whose sum is σ = 2431872000. Its totient is φ = 437736096.

The previous prime is 1078128851. The next prime is 1078128869. The reversal of 1078128856 is 6588218701.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078128851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505576 + ... + 507703.

It is an arithmetic number, because the mean of its divisors is an integer number (75996000).

Almost surely, 2^1078128856 is an apocalyptic number.

It is an amenable number.

1078128856 is an abundant number, since it is smaller than the sum of its proper divisors (1353743144).

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

1078128856 is a wasteful number, since it uses less digits than its factorization.

1078128856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013311 (or 1013307 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 46.

The square root of 1078128856 is about 32834.8725595212. The cubic root of 1078128856 is about 1025.3927048889.

The spelling of 1078128856 in words is "one billion, seventy-eight million, one hundred twenty-eight thousand, eight hundred fifty-six".