78896830039 has 2 divisors, whose sum is σ = 78896830040. Its totient is φ = 78896830038.

The previous prime is 78896830037. The next prime is 78896830049. The reversal of 78896830039 is 93003869887.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78896830039 - 2¹ = 78896830037 is a prime.

Together with 78896830037, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78896830037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39448415019 + 39448415020.

It is an arithmetic number, because the mean of its divisors is an integer number (39448415020).

Almost surely, 2^78896830039 is an apocalyptic number.

78896830039 is a deficient number, since it is larger than the sum of its proper divisors (1).

78896830039 is an equidigital number, since it uses as much as digits as its factorization.

78896830039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15676416, while the sum is 61.

The spelling of 78896830039 in words is "seventy-eight billion, eight hundred ninety-six million, eight hundred thirty thousand, thirty-nine".