75681868 has 24 divisors (see below), whose sum is σ = 139154400. Its totient is φ = 35946240.

The previous prime is 75681857. The next prime is 75681869. The reversal of 75681868 is 86818657.

It is not an unprimeable number, because it can be changed into a prime (75681869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10948 + ... + 16468.

It is an arithmetic number, because the mean of its divisors is an integer number (5798100).

Almost surely, 2^75681868 is an apocalyptic number.

It is an amenable number.

75681868 is a deficient number, since it is larger than the sum of its proper divisors (63472532).

75681868 is a wasteful number, since it uses less digits than its factorization.

75681868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5697 (or 5695 counting only the distinct ones).

The product of its digits is 645120, while the sum is 49.

The square root of 75681868 is about 8699.5326311245. The cubic root of 75681868 is about 422.9905006744.

The spelling of 75681868 in words is "seventy-five million, six hundred eighty-one thousand, eight hundred sixty-eight".