45563986051621 has 2 divisors, whose sum is σ = 45563986051622. Its totient is φ = 45563986051620.

The previous prime is 45563986051471. The next prime is 45563986051637. The reversal of 45563986051621 is 12615068936554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23044320202500 + 22519665849121 = 4800450^2 + 4745489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45563986051621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45563986051621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45563986051721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22781993025810 + 22781993025811.

It is an arithmetic number, because the mean of its divisors is an integer number (22781993025811).

Almost surely, 2^{45563986051621} is an apocalyptic number.

It is an amenable number.

45563986051621 is a deficient number, since it is larger than the sum of its proper divisors (1).

45563986051621 is an equidigital number, since it uses as much as digits as its factorization.

45563986051621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656000, while the sum is 61.

The spelling of 45563986051621 in words is "forty-five trillion, five hundred sixty-three billion, nine hundred eighty-six million, fifty-one thousand, six hundred twenty-one".