78036344239 has 8 divisors (see below), whose sum is σ = 89187052320. Its totient is φ = 66886300896.

The previous prime is 78036344201. The next prime is 78036344249. The reversal of 78036344239 is 93244363087.

It is a happy number.

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 78036344239 - 2²⁹ = 77499473327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78036344192 and 78036344201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78036344249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117717 + ... + 412225.

It is an arithmetic number, because the mean of its divisors is an integer number (11148381540).

Almost surely, 2^78036344239 is an apocalyptic number.

78036344239 is a deficient number, since it is larger than the sum of its proper divisors (11150708081).

78036344239 is a wasteful number, since it uses less digits than its factorization.

78036344239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332369.

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 78036344239 in words is "seventy-eight billion, thirty-six million, three hundred forty-four thousand, two hundred thirty-nine".