40662725827 has 4 divisors (see below), whose sum is σ = 40701490200. Its totient is φ = 40623961456.

The previous prime is 40662725771. The next prime is 40662725849. The reversal of 40662725827 is 72852726604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40662725827 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40662725627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19380613 + ... + 19382710.

It is an arithmetic number, because the mean of its divisors is an integer number (10175372550).

Almost surely, 2^40662725827 is an apocalyptic number.

40662725827 is a deficient number, since it is larger than the sum of its proper divisors (38764373).

40662725827 is a wasteful number, since it uses less digits than its factorization.

40662725827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38764372.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 40662725827 in words is "forty billion, six hundred sixty-two million, seven hundred twenty-five thousand, eight hundred twenty-seven".