45321626989 has 2 divisors, whose sum is σ = 45321626990. Its totient is φ = 45321626988.

The previous prime is 45321626947. The next prime is 45321626993. The reversal of 45321626989 is 98962612354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42685626025 + 2636000964 = 206605^2 + 51342^2 .

It is a cyclic number.

It is not a de Polignac number, because 45321626989 - 2¹⁵ = 45321594221 is a prime.

It is a super-2 number, since 2×45321626989² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45321626939) 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, 22660813494 + 22660813495.

It is an arithmetic number, because the mean of its divisors is an integer number (22660813495).

Almost surely, 2^45321626989 is an apocalyptic number.

It is an amenable number.

45321626989 is a deficient number, since it is larger than the sum of its proper divisors (1).

45321626989 is an equidigital number, since it uses as much as digits as its factorization.

45321626989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5598720, while the sum is 55.

The spelling of 45321626989 in words is "forty-five billion, three hundred twenty-one million, six hundred twenty-six thousand, nine hundred eighty-nine".