40388006485 has 4 divisors (see below), whose sum is σ = 48465607788. Its totient is φ = 32310405184.

The previous prime is 40388006471. The next prime is 40388006501. The reversal of 40388006485 is 58460088304.

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 6654806929 + 33733199556 = 81577^2 + 183666^2 .

It is a cyclic number.

It is not a de Polignac number, because 40388006485 - 2⁵ = 40388006453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4038800644 + ... + 4038800653.

It is an arithmetic number, because the mean of its divisors is an integer number (12116401947).

Almost surely, 2^40388006485 is an apocalyptic number.

It is an amenable number.

40388006485 is a deficient number, since it is larger than the sum of its proper divisors (8077601303).

40388006485 is an equidigital number, since it uses as much as digits as its factorization.

40388006485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8077601302.

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 40388006485 in words is "forty billion, three hundred eighty-eight million, six thousand, four hundred eighty-five".