1128624678 has 56 divisors (see below), whose sum is σ = 2556964200. Its totient is φ = 373434624.

The previous prime is 1128624649. The next prime is 1128624683. The reversal of 1128624678 is 8764268211.

1128624678 is a `hidden beast` number, since 1 + 12 + 8 + 624 + 6 + 7 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 199878 + ... + 205446.

It is an arithmetic number, because the mean of its divisors is an integer number (45660075).

Almost surely, 2^1128624678 is an apocalyptic number.

1128624678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1128624678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1278482100).

1128624678 is an abundant number, since it is smaller than the sum of its proper divisors (1428339522).

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

1128624678 is an equidigital number, since it uses as much as digits as its factorization.

1128624678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728 (or 5713 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 1128624678 is about 33595.0097187067. The cubic root of 1128624678 is about 1041.1576968783.

The spelling of 1128624678 in words is "one billion, one hundred twenty-eight million, six hundred twenty-four thousand, six hundred seventy-eight".