78007438159 has 8 divisors (see below), whose sum is σ = 89354439680. Its totient is φ = 66711207096.

The previous prime is 78007438153. The next prime is 78007438189. The reversal of 78007438159 is 95183470087.

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 78007438159 - 2⁷ = 78007438031 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 (78007438153) 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, 12689319 + ... + 12695464.

It is an arithmetic number, because the mean of its divisors is an integer number (11169304960).

Almost surely, 2^78007438159 is an apocalyptic number.

78007438159 is a deficient number, since it is larger than the sum of its proper divisors (11347001521).

78007438159 is a wasteful number, since it uses less digits than its factorization.

78007438159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25385229.

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

The spelling of 78007438159 in words is "seventy-eight billion, seven million, four hundred thirty-eight thousand, one hundred fifty-nine".