40218239171 has 8 divisors (see below), whose sum is σ = 44045163504. Its totient is φ = 36419768320.

The previous prime is 40218239147. The next prime is 40218239177. The reversal of 40218239171 is 17193281204.

It is a happy number.

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 40218239171 - 2¹⁰ = 40218238147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40218239177) 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, 7110410 + ... + 7116063.

It is an arithmetic number, because the mean of its divisors is an integer number (5505645438).

Almost surely, 2^40218239171 is an apocalyptic number.

40218239171 is a deficient number, since it is larger than the sum of its proper divisors (3826924333).

40218239171 is a wasteful number, since it uses less digits than its factorization.

40218239171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14226741.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 40218239171 in words is "forty billion, two hundred eighteen million, two hundred thirty-nine thousand, one hundred seventy-one".