40016643234427 has 4 divisors (see below), whose sum is σ = 41396527483920. Its totient is φ = 38636758984936.

The previous prime is 40016643234401. The next prime is 40016643234443. The reversal of 40016643234427 is 72443234661004.

40016643234427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40016643234427 - 2²⁷ = 40016509016699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40016643234467) 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, 689942124703 + ... + 689942124760.

It is an arithmetic number, because the mean of its divisors is an integer number (10349131870980).

Almost surely, 2^{40016643234427} is an apocalyptic number.

40016643234427 is a deficient number, since it is larger than the sum of its proper divisors (1379884249493).

40016643234427 is a wasteful number, since it uses less digits than its factorization.

40016643234427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379884249492.

The product of its (nonzero) digits is 2322432, while the sum is 46.

The spelling of 40016643234427 in words is "forty trillion, sixteen billion, six hundred forty-three million, two hundred thirty-four thousand, four hundred twenty-seven".