1126879899 has 4 divisors (see below), whose sum is σ = 1502506536. Its totient is φ = 751253264.

The previous prime is 1126879891. The next prime is 1126879909. The reversal of 1126879899 is 9989786211.

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 1126879899 - 2³ = 1126879891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1126879891) 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, 187813314 + ... + 187813319.

It is an arithmetic number, because the mean of its divisors is an integer number (375626634).

Almost surely, 2^1126879899 is an apocalyptic number.

1126879899 is a deficient number, since it is larger than the sum of its proper divisors (375626637).

1126879899 is an equidigital number, since it uses as much as digits as its factorization.

1126879899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375626636.

The product of its digits is 3919104, while the sum is 60.

The square root of 1126879899 is about 33569.0318448418. The cubic root of 1126879899 is about 1040.6208998855.

The spelling of 1126879899 in words is "one billion, one hundred twenty-six million, eight hundred seventy-nine thousand, eight hundred ninety-nine".