40871495021 has 8 divisors (see below), whose sum is σ = 46712110080. Its totient is φ = 35031337488.

The previous prime is 40871495017. The next prime is 40871495039. The reversal of 40871495021 is 12059417804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40871495021 - 2² = 40871495017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40871495021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40871495051) 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, 105140 + ... + 304626.

It is an arithmetic number, because the mean of its divisors is an integer number (5839013760).

Almost surely, 2^40871495021 is an apocalyptic number.

It is an amenable number.

40871495021 is a deficient number, since it is larger than the sum of its proper divisors (5840615059).

40871495021 is a wasteful number, since it uses less digits than its factorization.

40871495021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228763.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 40871495021 in words is "forty billion, eight hundred seventy-one million, four hundred ninety-five thousand, twenty-one".