78915005039 has 8 divisors (see below), whose sum is σ = 85301324640. Its totient is φ = 72573818976.

The previous prime is 78915005017. The next prime is 78915005047. The reversal of 78915005039 is 93050051987.

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 78915005039 - 2¹⁶ = 78914939503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78915004984 and 78915005002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78915005009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11279747 + ... + 11286740.

It is an arithmetic number, because the mean of its divisors is an integer number (10662665580).

Almost surely, 2^78915005039 is an apocalyptic number.

78915005039 is a deficient number, since it is larger than the sum of its proper divisors (6386319601).

78915005039 is a wasteful number, since it uses less digits than its factorization.

78915005039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22566769.

The product of its (nonzero) digits is 340200, while the sum is 47.

The spelling of 78915005039 in words is "seventy-eight billion, nine hundred fifteen million, five thousand, thirty-nine".