45355620209 has 2 divisors, whose sum is σ = 45355620210. Its totient is φ = 45355620208.

The previous prime is 45355620173. The next prime is 45355620217. The reversal of 45355620209 is 90202655354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37475152225 + 7880467984 = 193585^2 + 88772^2 .

It is a cyclic number.

It is not a de Polignac number, because 45355620209 - 2¹² = 45355616113 is a prime.

It is not a weakly prime, because it can be changed into another prime (45355620269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22677810104 + 22677810105.

It is an arithmetic number, because the mean of its divisors is an integer number (22677810105).

Almost surely, 2^45355620209 is an apocalyptic number.

It is an amenable number.

45355620209 is a deficient number, since it is larger than the sum of its proper divisors (1).

45355620209 is an equidigital number, since it uses as much as digits as its factorization.

45355620209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 45355620209 in words is "forty-five billion, three hundred fifty-five million, six hundred twenty thousand, two hundred nine".