41808021545461 has 4 divisors (see below), whose sum is σ = 42137218565632. Its totient is φ = 41478824525292.

The previous prime is 41808021545449. The next prime is 41808021545473. The reversal of 41808021545461 is 16454512080814.

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 an interprime number because it is at equal distance from previous prime (41808021545449) and next prime (41808021545473).

It is a cyclic number.

It is not a de Polignac number, because 41808021545461 - 2²¹ = 41808019448309 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 (41808021545401) 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, 164598509895 + ... + 164598510148.

It is an arithmetic number, because the mean of its divisors is an integer number (10534304641408).

Almost surely, 2^{41808021545461} is an apocalyptic number.

It is an amenable number.

41808021545461 is a deficient number, since it is larger than the sum of its proper divisors (329197020171).

41808021545461 is a wasteful number, since it uses less digits than its factorization.

41808021545461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329197020170.

The product of its (nonzero) digits is 1228800, while the sum is 49.

The spelling of 41808021545461 in words is "forty-one trillion, eight hundred eight billion, twenty-one million, five hundred forty-five thousand, four hundred sixty-one".