2064729745 has 16 divisors (see below), whose sum is σ = 2718615312. Its totient is φ = 1495952640.

The previous prime is 2064729703. The next prime is 2064729763. The reversal of 2064729745 is 5479274602.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 46294416 + 2018435329 = 6804^2 + 44927^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2064729745 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2064729695 and 2064729704.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296226 + ... + 303115.

It is an arithmetic number, because the mean of its divisors is an integer number (169913457).

Almost surely, 2^2064729745 is an apocalyptic number.

It is an amenable number.

2064729745 is a deficient number, since it is larger than the sum of its proper divisors (653885567).

2064729745 is a wasteful number, since it uses less digits than its factorization.

2064729745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599412.

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 2064729745 is about 45439.2973647261. The cubic root of 2064729745 is about 1273.3693869635.

The spelling of 2064729745 in words is "two billion, sixty-four million, seven hundred twenty-nine thousand, seven hundred forty-five".