1117723668 has 24 divisors (see below), whose sum is σ = 2615419968. Its totient is φ = 371517696.

The previous prime is 1117723643. The next prime is 1117723687. The reversal of 1117723668 is 8663277111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127696 + ... + 136167.

It is an arithmetic number, because the mean of its divisors is an integer number (108975832).

Almost surely, 2^1117723668 is an apocalyptic number.

It is an amenable number.

1117723668 is an abundant number, since it is smaller than the sum of its proper divisors (1497696300).

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

1117723668 is a wasteful number, since it uses less digits than its factorization.

1117723668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264223 (or 264221 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 1117723668 is about 33432.3745492300. The cubic root of 1117723668 is about 1037.7947812488.

It can be divided in two parts, 111772 and 3668, that added together give a triangular number (115440 = T₄₈₀).

The spelling of 1117723668 in words is "one billion, one hundred seventeen million, seven hundred twenty-three thousand, six hundred sixty-eight".