78831290339 has 8 divisors (see below), whose sum is σ = 83139587280. Its totient is φ = 74538921600.

The previous prime is 78831290249. The next prime is 78831290357. The reversal of 78831290339 is 93309213887.

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 78831290339 - 2²⁴ = 78814513123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78831290539) 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, 3971882 + ... + 3991679.

It is an arithmetic number, because the mean of its divisors is an integer number (10392448410).

Almost surely, 2^78831290339 is an apocalyptic number.

78831290339 is a deficient number, since it is larger than the sum of its proper divisors (4308296941).

78831290339 is a wasteful number, since it uses less digits than its factorization.

78831290339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7964101.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 78831290339 in words is "seventy-eight billion, eight hundred thirty-one million, two hundred ninety thousand, three hundred thirty-nine".