45612421669 has 2 divisors, whose sum is σ = 45612421670. Its totient is φ = 45612421668.

The previous prime is 45612421639. The next prime is 45612421691. The reversal of 45612421669 is 96612421654.

45612421669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42647619169 + 2964802500 = 206513^2 + 54450^2 .

It is a cyclic number.

It is not a de Polignac number, because 45612421669 - 2¹¹ = 45612419621 is a prime.

It is a super-2 number, since 2×45612421669² (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 (45612421619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22806210834 + 22806210835.

It is an arithmetic number, because the mean of its divisors is an integer number (22806210835).

Almost surely, 2^45612421669 is an apocalyptic number.

It is an amenable number.

45612421669 is a deficient number, since it is larger than the sum of its proper divisors (1).

45612421669 is an equidigital number, since it uses as much as digits as its factorization.

45612421669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 46.

The spelling of 45612421669 in words is "forty-five billion, six hundred twelve million, four hundred twenty-one thousand, six hundred sixty-nine".