40571146645 has 8 divisors (see below), whose sum is σ = 48870493056. Its totient is φ = 32333505936.

The previous prime is 40571146643. The next prime is 40571146673. The reversal of 40571146645 is 54664117504.

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 40571146645 - 2¹ = 40571146643 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 (40571146643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15424977 + ... + 15427606.

It is an arithmetic number, because the mean of its divisors is an integer number (6108811632).

Almost surely, 2^40571146645 is an apocalyptic number.

It is an amenable number.

40571146645 is a deficient number, since it is larger than the sum of its proper divisors (8299346411).

40571146645 is a wasteful number, since it uses less digits than its factorization.

40571146645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30852851.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 40571146645 in words is "forty billion, five hundred seventy-one million, one hundred forty-six thousand, six hundred forty-five".