40901434447 has 4 divisors (see below), whose sum is σ = 40949385400. Its totient is φ = 40853483496.

The previous prime is 40901434429. The next prime is 40901434523. The reversal of 40901434447 is 74443410904.

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 40901434447 - 2¹¹ = 40901432399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40901434247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23974197 + ... + 23975902.

It is an arithmetic number, because the mean of its divisors is an integer number (10237346350).

Almost surely, 2^40901434447 is an apocalyptic number.

40901434447 is a deficient number, since it is larger than the sum of its proper divisors (47950953).

40901434447 is an equidigital number, since it uses as much as digits as its factorization.

40901434447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47950952.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 40901434447 in words is "forty billion, nine hundred one million, four hundred thirty-four thousand, four hundred forty-seven".