78604633459 has 4 divisors (see below), whose sum is σ = 85750509240. Its totient is φ = 71458757680.

The previous prime is 78604633441. The next prime is 78604633561. The reversal of 78604633459 is 95433640687.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78604633459 - 2⁵ = 78604633427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78604633409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3572937874 + ... + 3572937895.

It is an arithmetic number, because the mean of its divisors is an integer number (21437627310).

Almost surely, 2^78604633459 is an apocalyptic number.

78604633459 is a deficient number, since it is larger than the sum of its proper divisors (7145875781).

78604633459 is a wasteful number, since it uses less digits than its factorization.

78604633459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145875780.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 78604633459 in words is "seventy-eight billion, six hundred four million, six hundred thirty-three thousand, four hundred fifty-nine".