78510131341 has 2 divisors, whose sum is σ = 78510131342. Its totient is φ = 78510131340.

The previous prime is 78510131281. The next prime is 78510131347. The reversal of 78510131341 is 14313101587.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50335166025 + 28174965316 = 224355^2 + 167854^2 .

It is an emirp because it is prime and its reverse (14313101587) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78510131341 - 2⁷ = 78510131213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78510131297 and 78510131306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78510131347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39255065670 + 39255065671.

It is an arithmetic number, because the mean of its divisors is an integer number (39255065671).

Almost surely, 2^78510131341 is an apocalyptic number.

It is an amenable number.

78510131341 is a deficient number, since it is larger than the sum of its proper divisors (1).

78510131341 is an equidigital number, since it uses as much as digits as its factorization.

78510131341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 78510131341 in words is "seventy-eight billion, five hundred ten million, one hundred thirty-one thousand, three hundred forty-one".