1009988876 has 12 divisors (see below), whose sum is σ = 1903440672. Its totient is φ = 466148688.

The previous prime is 1009988843. The next prime is 1009988911. The reversal of 1009988876 is 6788899001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9711380 + ... + 9711483.

It is an arithmetic number, because the mean of its divisors is an integer number (158620056).

Almost surely, 2^1009988876 is an apocalyptic number.

It is an amenable number.

1009988876 is a deficient number, since it is larger than the sum of its proper divisors (893451796).

1009988876 is a wasteful number, since it uses less digits than its factorization.

1009988876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19422880 (or 19422878 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 56.

The square root of 1009988876 is about 31780.3221506642. The cubic root of 1009988876 is about 1003.3186000444.

The spelling of 1009988876 in words is "one billion, nine million, nine hundred eighty-eight thousand, eight hundred seventy-six".