10621404753569 has 2 divisors, whose sum is σ = 10621404753570. Its totient is φ = 10621404753568.

The previous prime is 10621404753559. The next prime is 10621404753581. The reversal of 10621404753569 is 96535740412601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7123427550625 + 3497977202944 = 2668975^2 + 1870288^2 .

It is a cyclic number.

It is not a de Polignac number, because 10621404753569 - 2³² = 10617109786273 is a prime.

It is a super-2 number, since 2×10621404753569² (a number of 27 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 10621404753569.

It is not a weakly prime, because it can be changed into another prime (10621404753529) 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, 5310702376784 + 5310702376785.

It is an arithmetic number, because the mean of its divisors is an integer number (5310702376785).

Almost surely, 2^{10621404753569} is an apocalyptic number.

It is an amenable number.

10621404753569 is a deficient number, since it is larger than the sum of its proper divisors (1).

10621404753569 is an equidigital number, since it uses as much as digits as its factorization.

10621404753569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 10621404753569 in words is "ten trillion, six hundred twenty-one billion, four hundred four million, seven hundred fifty-three thousand, five hundred sixty-nine".