2064736245745 has 4 divisors (see below), whose sum is σ = 2477683494900. Its totient is φ = 1651788996592.

The previous prime is 2064736245727. The next prime is 2064736245749. The reversal of 2064736245745 is 5475426374602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 618989724081 + 1445746521664 = 786759^2 + 1202392^2 .

It is a cyclic number.

It is not a de Polignac number, because 2064736245745 - 2²⁷ = 2064602028017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2064736245749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206473624570 + ... + 206473624579.

It is an arithmetic number, because the mean of its divisors is an integer number (619420873725).

Almost surely, 2^{2064736245745} is an apocalyptic number.

It is an amenable number.

2064736245745 is a deficient number, since it is larger than the sum of its proper divisors (412947249155).

2064736245745 is an equidigital number, since it uses as much as digits as its factorization.

2064736245745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412947249154.

The product of its (nonzero) digits is 33868800, while the sum is 55.

The spelling of 2064736245745 in words is "two trillion, sixty-four billion, seven hundred thirty-six million, two hundred forty-five thousand, seven hundred forty-five".