1128656018 has 16 divisors (see below), whose sum is σ = 1936384704. Its totient is φ = 483323280.

The previous prime is 1128656003. The next prime is 1128656021. The reversal of 1128656018 is 8106568211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13688 + ... + 49443.

It is an arithmetic number, because the mean of its divisors is an integer number (121024044).

Almost surely, 2^1128656018 is an apocalyptic number.

1128656018 is a deficient number, since it is larger than the sum of its proper divisors (807728686).

1128656018 is a wasteful number, since it uses less digits than its factorization.

1128656018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64417.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 1128656018 is about 33595.4761537919. The cubic root of 1128656018 is about 1041.1673338524.

The spelling of 1128656018 in words is "one billion, one hundred twenty-eight million, six hundred fifty-six thousand, eighteen".