2045404550009 has 2 divisors, whose sum is σ = 2045404550010. Its totient is φ = 2045404550008.

The previous prime is 2045404549927. The next prime is 2045404550017. The reversal of 2045404550009 is 9000554045402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1509880627984 + 535523922025 = 1228772^2 + 731795^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045404550009 - 2⁸ = 2045404549753 is a prime.

It is not a weakly prime, because it can be changed into another prime (2045404550029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022702275004 + 1022702275005.

It is an arithmetic number, because the mean of its divisors is an integer number (1022702275005).

Almost surely, 2^{2045404550009} is an apocalyptic number.

It is an amenable number.

2045404550009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045404550009 is an equidigital number, since it uses as much as digits as its factorization.

2045404550009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 2045404550009 in words is "two trillion, forty-five billion, four hundred four million, five hundred fifty thousand, nine".