78868675499 has 8 divisors (see below), whose sum is σ = 83025353040. Its totient is φ = 74712567456.

The previous prime is 78868675493. The next prime is 78868675519. The reversal of 78868675499 is 99457686887.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78868675499 - 2⁸ = 78868675243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78868675493) 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, 158189 + ... + 427505.

It is an arithmetic number, because the mean of its divisors is an integer number (10378169130).

Almost surely, 2^78868675499 is an apocalyptic number.

78868675499 is a deficient number, since it is larger than the sum of its proper divisors (4156677541).

78868675499 is a wasteful number, since it uses less digits than its factorization.

78868675499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284749.

The product of its digits is 1463132160, while the sum is 77.

The spelling of 78868675499 in words is "seventy-eight billion, eight hundred sixty-eight million, six hundred seventy-five thousand, four hundred ninety-nine".