1290601513769 has 2 divisors, whose sum is σ = 1290601513770. Its totient is φ = 1290601513768.

The previous prime is 1290601513763. The next prime is 1290601513777. The reversal of 1290601513769 is 9673151060921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 826790118400 + 463811395369 = 909280^2 + 681037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1290601513769 is a prime.

It is a super-2 number, since 2×1290601513769² (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 (1290601513763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645300756884 + 645300756885.

It is an arithmetic number, because the mean of its divisors is an integer number (645300756885).

Almost surely, 2^{1290601513769} is an apocalyptic number.

It is an amenable number.

1290601513769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1290601513769 is an equidigital number, since it uses as much as digits as its factorization.

1290601513769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 50.

The spelling of 1290601513769 in words is "one trillion, two hundred ninety billion, six hundred one million, five hundred thirteen thousand, seven hundred sixty-nine".