78896830049 has 2 divisors, whose sum is σ = 78896830050. Its totient is φ = 78896830048.

The previous prime is 78896830039. The next prime is 78896830091. The reversal of 78896830049 is 94003869887.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51263752225 + 27633077824 = 226415^2 + 166232^2 .

It is a cyclic number.

It is not a de Polignac number, because 78896830049 - 2⁸ = 78896829793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78896829973 and 78896830000.

It is not a weakly prime, because it can be changed into another prime (78896830039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39448415024 + 39448415025.

It is an arithmetic number, because the mean of its divisors is an integer number (39448415025).

Almost surely, 2^78896830049 is an apocalyptic number.

It is an amenable number.

78896830049 is a deficient number, since it is larger than the sum of its proper divisors (1).

78896830049 is an equidigital number, since it uses as much as digits as its factorization.

78896830049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 78896830049 in words is "seventy-eight billion, eight hundred ninety-six million, eight hundred thirty thousand, forty-nine".