1395579465281 has 2 divisors, whose sum is σ = 1395579465282. Its totient is φ = 1395579465280.

The previous prime is 1395579465271. The next prime is 1395579465307. The reversal of 1395579465281 is 1825649755931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1324303814656 + 71275650625 = 1150784^2 + 266975^2 .

It is a cyclic number.

It is not a de Polignac number, because 1395579465281 - 2¹⁴ = 1395579448897 is a prime.

It is a super-2 number, since 2×1395579465281² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1395579465251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697789732640 + 697789732641.

It is an arithmetic number, because the mean of its divisors is an integer number (697789732641).

Almost surely, 2^{1395579465281} is an apocalyptic number.

It is an amenable number.

1395579465281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1395579465281 is an equidigital number, since it uses as much as digits as its factorization.

1395579465281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648000, while the sum is 65.

The spelling of 1395579465281 in words is "one trillion, three hundred ninety-five billion, five hundred seventy-nine million, four hundred sixty-five thousand, two hundred eighty-one".