76999568 has 20 divisors (see below), whose sum is σ = 151634268. Its totient is φ = 37868160.

The previous prime is 76999547. The next prime is 76999577. The reversal of 76999568 is 86599967.

76999568 = T₄₅₇ + T₄₅₈ + ... + T₈₂₂.

It can be written as a sum of positive squares in 2 ways, for example, as 13191424 + 63808144 = 3632^2 + 7988^2 .

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 3 ways as a sum of consecutive naturals, for example, 38471 + ... + 40422.

Almost surely, 2^76999568 is an apocalyptic number.

It is an amenable number.

76999568 is a deficient number, since it is larger than the sum of its proper divisors (74634700).

76999568 is a wasteful number, since it uses less digits than its factorization.

76999568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78962 (or 78956 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 59.

The square root of 76999568 is about 8774.9397718731. The cubic root of 76999568 is about 425.4312908968.

The spelling of 76999568 in words is "seventy-six million, nine hundred ninety-nine thousand, five hundred sixty-eight".