1455740513809 has 2 divisors, whose sum is σ = 1455740513810. Its totient is φ = 1455740513808.

The previous prime is 1455740513789. The next prime is 1455740513873. The reversal of 1455740513809 is 9083150475541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1215594451600 + 240146062209 = 1102540^2 + 490047^2 .

It is a cyclic number.

It is not a de Polignac number, because 1455740513809 - 2⁷ = 1455740513681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1455740513209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727870256904 + 727870256905.

It is an arithmetic number, because the mean of its divisors is an integer number (727870256905).

Almost surely, 2^{1455740513809} is an apocalyptic number.

It is an amenable number.

1455740513809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1455740513809 is an equidigital number, since it uses as much as digits as its factorization.

1455740513809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024000, while the sum is 52.

The spelling of 1455740513809 in words is "one trillion, four hundred fifty-five billion, seven hundred forty million, five hundred thirteen thousand, eight hundred nine".