78688808903 has 8 divisors (see below), whose sum is σ = 82877447808. Its totient is φ = 74564118904.

The previous prime is 78688808851. The next prime is 78688808917. The reversal of 78688808903 is 30980888687.

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 78688808903 - 2²⁶ = 78621700039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78688808903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78628808903) 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, 15984701 + ... + 15989622.

It is an arithmetic number, because the mean of its divisors is an integer number (10359680976).

Almost surely, 2^78688808903 is an apocalyptic number.

78688808903 is a deficient number, since it is larger than the sum of its proper divisors (4188638905).

78688808903 is a wasteful number, since it uses less digits than its factorization.

78688808903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31974453.

The product of its (nonzero) digits is 37158912, while the sum is 65.

The spelling of 78688808903 in words is "seventy-eight billion, six hundred eighty-eight million, eight hundred eight thousand, nine hundred three".