40669024209529 has 27 divisors (see below), whose sum is σ = 44644301915853. Its totient is φ = 37038934416000.

The previous prime is 40669024209503. The next prime is 40669024209599. The reversal of 40669024209529 is 92590242096604.

The square root of 40669024209529 is 6377227.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 31041333675625 + 9627690533904 = 5571475^2 + 3102852^2 .

It is not a de Polignac number, because 40669024209529 - 2¹⁵ = 40669024176761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40669024209599) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3360792579 + ... + 3360804679.

Almost surely, 2^{40669024209529} is an apocalyptic number.

40669024209529 is the 6377227-th square number.

40669024209529 is the 3188614-th centered octagonal number.

It is an amenable number.

40669024209529 is a deficient number, since it is larger than the sum of its proper divisors (3975277706324).

40669024209529 is an frugal number, since it uses more digits than its factorization.

40669024209529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24298 (or 12149 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 58.

The spelling of 40669024209529 in words is "forty trillion, six hundred sixty-nine billion, twenty-four million, two hundred nine thousand, five hundred twenty-nine".