78259768 has 16 divisors (see below), whose sum is σ = 147033000. Its totient is φ = 39050976.

The previous prime is 78259759. The next prime is 78259781. The reversal of 78259768 is 86795287.

It is a super-2 number, since 2×78259768² = 12249182574827648, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 5538 + ... + 13681.

Almost surely, 2^78259768 is an apocalyptic number.

It is an amenable number.

78259768 is a deficient number, since it is larger than the sum of its proper divisors (68773232).

78259768 is a wasteful number, since it uses less digits than its factorization.

78259768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19734 (or 19730 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 52.

The square root of 78259768 is about 8846.4551092514. The cubic root of 78259768 is about 427.7396588336.

The spelling of 78259768 in words is "seventy-eight million, two hundred fifty-nine thousand, seven hundred sixty-eight".