4278319197613 has 2 divisors, whose sum is σ = 4278319197614. Its totient is φ = 4278319197612.

The previous prime is 4278319197587. The next prime is 4278319197631. The reversal of 4278319197613 is 3167919138724.

Together with next prime (4278319197631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3939061875849 + 339257321764 = 1984707^2 + 582458^2 .

It is a cyclic number.

It is not a de Polignac number, because 4278319197613 - 2¹³ = 4278319189421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4278319197653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139159598806 + 2139159598807.

It is an arithmetic number, because the mean of its divisors is an integer number (2139159598807).

Almost surely, 2^{4278319197613} is an apocalyptic number.

It is an amenable number.

4278319197613 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278319197613 is an equidigital number, since it uses as much as digits as its factorization.

4278319197613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 61.

The spelling of 4278319197613 in words is "four trillion, two hundred seventy-eight billion, three hundred nineteen million, one hundred ninety-seven thousand, six hundred thirteen".