40415938382845 has 8 divisors (see below), whose sum is σ = 48750416869176. Its totient is φ = 32165223499776.

The previous prime is 40415938382843. The next prime is 40415938382881. The reversal of 40415938382845 is 54828383951404.

It can be written as a sum of positive squares in 4 ways, for example, as 11609843211684 + 28806095171161 = 3407322^2 + 5367131^2 .

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 40415938382845 - 2¹ = 40415938382843 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 (40415938382843) 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, 20940899752 + ... + 20940901681.

It is an arithmetic number, because the mean of its divisors is an integer number (6093802108647).

Almost surely, 2^{40415938382845} is an apocalyptic number.

It is an amenable number.

40415938382845 is a deficient number, since it is larger than the sum of its proper divisors (8334478486331).

40415938382845 is a wasteful number, since it uses less digits than its factorization.

40415938382845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41881801631.

The product of its (nonzero) digits is 132710400, while the sum is 64.

The spelling of 40415938382845 in words is "forty trillion, four hundred fifteen billion, nine hundred thirty-eight million, three hundred eighty-two thousand, eight hundred forty-five".