1128617850 has 24 divisors (see below), whose sum is σ = 2798972640. Its totient is φ = 300964720.

The previous prime is 1128617849. The next prime is 1128617869. The reversal of 1128617850 is 587168211.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1128617799 and 1128617808.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3761910 + ... + 3762209.

It is an arithmetic number, because the mean of its divisors is an integer number (116623860).

Almost surely, 2^1128617850 is an apocalyptic number.

1128617850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1128617850 is an abundant number, since it is smaller than the sum of its proper divisors (1670354790).

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

1128617850 is a wasteful number, since it uses less digits than its factorization.

1128617850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7524134 (or 7524129 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 39.

The square root of 1128617850 is about 33594.9080963172. The cubic root of 1128617850 is about 1041.1555972612.

The spelling of 1128617850 in words is "one billion, one hundred twenty-eight million, six hundred seventeen thousand, eight hundred fifty".