314478785381 has 2 divisors, whose sum is σ = 314478785382. Its totient is φ = 314478785380.

The previous prime is 314478785359. The next prime is 314478785429. The reversal of 314478785381 is 183587874413.

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., 310934488225 + 3544297156 = 557615^2 + 59534^2 .

It is a cyclic number.

It is not a de Polignac number, because 314478785381 - 2¹⁴ = 314478768997 is a prime.

It is a super-2 number, since 2×314478785381² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 314478785381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (314478785681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157239392690 + 157239392691.

It is an arithmetic number, because the mean of its divisors is an integer number (157239392691).

Almost surely, 2^314478785381 is an apocalyptic number.

It is an amenable number.

314478785381 is a deficient number, since it is larger than the sum of its proper divisors (1).

314478785381 is an equidigital number, since it uses as much as digits as its factorization.

314478785381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18063360, while the sum is 59.

The spelling of 314478785381 in words is "three hundred fourteen billion, four hundred seventy-eight million, seven hundred eighty-five thousand, three hundred eighty-one".