1109699864 has 192 divisors, whose sum is σ = 2799064800. Its totient is φ = 407586816.

The previous prime is 1109699813. The next prime is 1109699887. The reversal of 1109699864 is 4689969011.

It is a happy number.

1109699864 is a modest number, since divided by 99864 gives 11096 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7068074 + ... + 7068230.

Almost surely, 2^1109699864 is an apocalyptic number.

1109699864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1109699864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1399532400).

1109699864 is an abundant number, since it is smaller than the sum of its proper divisors (1689364936).

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

1109699864 is a wasteful number, since it uses less digits than its factorization.

1109699864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 1109699864 is about 33312.1579006824. The cubic root of 1109699864 is about 1035.3054755778.

It can be divided in two parts, 11096 and 99864, that multiplied together give a square (1108090944 = 33288²).

The spelling of 1109699864 in words is "one billion, one hundred nine million, six hundred ninety-nine thousand, eight hundred sixty-four".