40748690585 has 8 divisors (see below), whose sum is σ = 48901867080. Its totient is φ = 32596660224.

The previous prime is 40748690579. The next prime is 40748690597. The reversal of 40748690585 is 58509684704.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 225390169 + 40523300416 = 15013^2 + 201304^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40748690585 - 2²⁸ = 40480255129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40748690585.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206270 + ... + 352199.

It is an arithmetic number, because the mean of its divisors is an integer number (6112733385).

Almost surely, 2^40748690585 is an apocalyptic number.

It is an amenable number.

40748690585 is a deficient number, since it is larger than the sum of its proper divisors (8153176495).

40748690585 is a wasteful number, since it uses less digits than its factorization.

40748690585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573067.

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 40748690585 in words is "forty billion, seven hundred forty-eight million, six hundred ninety thousand, five hundred eighty-five".