45348202721 has 2 divisors, whose sum is σ = 45348202722. Its totient is φ = 45348202720.

The previous prime is 45348202681. The next prime is 45348202759. The reversal of 45348202721 is 12720284354.

It is a happy number.

It is an a-pointer prime, because the next prime (45348202759) can be obtained adding 45348202721 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31590085696 + 13758117025 = 177736^2 + 117295^2 .

It is a cyclic number.

It is not a de Polignac number, because 45348202721 - 2³⁰ = 44274460897 is a prime.

It is not a weakly prime, because it can be changed into another prime (45348208721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22674101360 + 22674101361.

It is an arithmetic number, because the mean of its divisors is an integer number (22674101361).

Almost surely, 2^45348202721 is an apocalyptic number.

It is an amenable number.

45348202721 is a deficient number, since it is larger than the sum of its proper divisors (1).

45348202721 is an equidigital number, since it uses as much as digits as its factorization.

45348202721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 45348202721 in words is "forty-five billion, three hundred forty-eight million, two hundred two thousand, seven hundred twenty-one".