130778934049 has 2 divisors, whose sum is σ = 130778934050. Its totient is φ = 130778934048.

The previous prime is 130778934047. The next prime is 130778934061. The reversal of 130778934049 is 940439877031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117385038225 + 13393895824 = 342615^2 + 115732^2 .

It is an emirp because it is prime and its reverse (940439877031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130778934049 - 2¹ = 130778934047 is a prime.

Together with 130778934047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (130778934047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65389467024 + 65389467025.

It is an arithmetic number, because the mean of its divisors is an integer number (65389467025).

Almost surely, 2^130778934049 is an apocalyptic number.

It is an amenable number.

130778934049 is a deficient number, since it is larger than the sum of its proper divisors (1).

130778934049 is an equidigital number, since it uses as much as digits as its factorization.

130778934049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 130778934049 in words is "one hundred thirty billion, seven hundred seventy-eight million, nine hundred thirty-four thousand, forty-nine".