1040259452669 has 2 divisors, whose sum is σ = 1040259452670. Its totient is φ = 1040259452668.

The previous prime is 1040259452651. The next prime is 1040259452681. The reversal of 1040259452669 is 9662549520401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 683289051769 + 356970400900 = 826613^2 + 597470^2 .

It is an emirp because it is prime and its reverse (9662549520401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1040259452669 - 2³² = 1035964485373 is a prime.

It is a super-2 number, since 2×1040259452669² (a number of 25 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 1040259452669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040259452699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520129726334 + 520129726335.

It is an arithmetic number, because the mean of its divisors is an integer number (520129726335).

Almost surely, 2^{1040259452669} is an apocalyptic number.

It is an amenable number.

1040259452669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040259452669 is an equidigital number, since it uses as much as digits as its factorization.

1040259452669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 1040259452669 in words is "one trillion, forty billion, two hundred fifty-nine million, four hundred fifty-two thousand, six hundred sixty-nine".