1128509679 has 16 divisors (see below), whose sum is σ = 1646058240. Its totient is φ = 682032960.

The previous prime is 1128509639. The next prime is 1128509773. The reversal of 1128509679 is 9769058211.

It is not a de Polignac number, because 1128509679 - 2⁹ = 1128509167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128509639) 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, 35782 + ... + 59475.

It is an arithmetic number, because the mean of its divisors is an integer number (102878640).

Almost surely, 2^1128509679 is an apocalyptic number.

1128509679 is a deficient number, since it is larger than the sum of its proper divisors (517548561).

1128509679 is a wasteful number, since it uses less digits than its factorization.

1128509679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95630.

The product of its (nonzero) digits is 272160, while the sum is 48.

The square root of 1128509679 is about 33593.2981262632. The cubic root of 1128509679 is about 1041.1223334361.

The spelling of 1128509679 in words is "one billion, one hundred twenty-eight million, five hundred nine thousand, six hundred seventy-nine".