1128969663 has 4 divisors (see below), whose sum is σ = 1505292888. Its totient is φ = 752646440.

The previous prime is 1128969649. The next prime is 1128969671. The reversal of 1128969663 is 3669698211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1128969663 - 2⁸ = 1128969407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128964663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188161608 + ... + 188161613.

It is an arithmetic number, because the mean of its divisors is an integer number (376323222).

Almost surely, 2^1128969663 is an apocalyptic number.

1128969663 is a deficient number, since it is larger than the sum of its proper divisors (376323225).

1128969663 is an equidigital number, since it uses as much as digits as its factorization.

1128969663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376323224.

The product of its digits is 839808, while the sum is 51.

The square root of 1128969663 is about 33600.1437943352. The cubic root of 1128969663 is about 1041.2637691047.

The spelling of 1128969663 in words is "one billion, one hundred twenty-eight million, nine hundred sixty-nine thousand, six hundred sixty-three".