40621640171 has 8 divisors (see below), whose sum is σ = 46425993984. Its totient is φ = 34817601960.

The previous prime is 40621640153. The next prime is 40621640203. The reversal of 40621640171 is 17104612604.

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 40621640171 - 2¹⁸ = 40621378027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40621640671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358826 + ... + 458256.

It is an arithmetic number, because the mean of its divisors is an integer number (5803249248).

Almost surely, 2^40621640171 is an apocalyptic number.

40621640171 is a deficient number, since it is larger than the sum of its proper divisors (5804353813).

40621640171 is an equidigital number, since it uses as much as digits as its factorization.

40621640171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157801.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 40621640171 in words is "forty billion, six hundred twenty-one million, six hundred forty thousand, one hundred seventy-one".