78456088065487 has 8 divisors (see below), whose sum is σ = 85588631873280. Its totient is φ = 71323572951960.

The previous prime is 78456088065449. The next prime is 78456088065493.

78456088065487 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78456088065487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78456088065587) 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, 1243437 + ... + 12588022.

It is an arithmetic number, because the mean of its divisors is an integer number (10698578984160).

Almost surely, 2^{78456088065487} is an apocalyptic number.

78456088065487 is a deficient number, since it is larger than the sum of its proper divisors (7132543807793).

78456088065487 is a wasteful number, since it uses less digits than its factorization.

78456088065487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14347133.

The product of its (nonzero) digits is 2890137600, while the sum is 76.

The spelling of 78456088065487 in words is "seventy-eight trillion, four hundred fifty-six billion, eighty-eight million, sixty-five thousand, four hundred eighty-seven".