1295470846721 has 2 divisors, whose sum is σ = 1295470846722. Its totient is φ = 1295470846720.

The previous prime is 1295470846693. The next prime is 1295470846799. The reversal of 1295470846721 is 1276480745921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1240407877696 + 55062969025 = 1113736^2 + 234655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1295470846721 is a prime.

It is not a weakly prime, because it can be changed into another prime (1295470840721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647735423360 + 647735423361.

It is an arithmetic number, because the mean of its divisors is an integer number (647735423361).

Almost surely, 2^{1295470846721} is an apocalyptic number.

It is an amenable number.

1295470846721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295470846721 is an equidigital number, since it uses as much as digits as its factorization.

1295470846721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 1295470846721 in words is "one trillion, two hundred ninety-five billion, four hundred seventy million, eight hundred forty-six thousand, seven hundred twenty-one".