7285723665145 has 32 divisors (see below), whose sum is σ = 8909644004352. Its totient is φ = 5718488466432.

The previous prime is 7285723665113. The next prime is 7285723665161. The reversal of 7285723665145 is 5415663275827.

It is a cyclic number.

It is not a de Polignac number, because 7285723665145 - 2⁵ = 7285723665113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144123744 + ... + 144174286.

It is an arithmetic number, because the mean of its divisors is an integer number (278426375136).

Almost surely, 2^{7285723665145} is an apocalyptic number.

It is an amenable number.

7285723665145 is a deficient number, since it is larger than the sum of its proper divisors (1623920339207).

7285723665145 is a wasteful number, since it uses less digits than its factorization.

7285723665145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53241.

The product of its digits is 84672000, while the sum is 61.

The spelling of 7285723665145 in words is "seven trillion, two hundred eighty-five billion, seven hundred twenty-three million, six hundred sixty-five thousand, one hundred forty-five".