41641512781 has 8 divisors (see below), whose sum is σ = 45434426400. Its totient is φ = 37849819440.

The previous prime is 41641512779. The next prime is 41641512823. The reversal of 41641512781 is 18721514614.

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 41641512781 - 2¹ = 41641512779 is a prime.

It is a super-2 number, since 2×41641512781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41641512701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232971 + ... + 370888.

It is an arithmetic number, because the mean of its divisors is an integer number (5679303300).

Almost surely, 2^41641512781 is an apocalyptic number.

It is an amenable number.

41641512781 is a deficient number, since it is larger than the sum of its proper divisors (3792913619).

41641512781 is a wasteful number, since it uses less digits than its factorization.

41641512781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610139.

The product of its digits is 53760, while the sum is 40.

The spelling of 41641512781 in words is "forty-one billion, six hundred forty-one million, five hundred twelve thousand, seven hundred eighty-one".