41400204140021 has 4 divisors (see below), whose sum is σ = 41557619365152. Its totient is φ = 41242788914892.

The previous prime is 41400204139991. The next prime is 41400204140033. The reversal of 41400204140021 is 12004140200414.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41400204140021 - 2¹⁴ = 41400204123637 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 (41400204142021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78707612171 + ... + 78707612696.

It is an arithmetic number, because the mean of its divisors is an integer number (10389404841288).

Almost surely, 2^{41400204140021} is an apocalyptic number.

It is an amenable number.

41400204140021 is a deficient number, since it is larger than the sum of its proper divisors (157415225131).

41400204140021 is a wasteful number, since it uses less digits than its factorization.

41400204140021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157415225130.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 41400204140021 its reverse (12004140200414), we get a palindrome (53404344340435).

The spelling of 41400204140021 in words is "forty-one trillion, four hundred billion, two hundred four million, one hundred forty thousand, twenty-one".