41239861871 has 4 divisors (see below), whose sum is σ = 44412158952. Its totient is φ = 38067564792.

The previous prime is 41239861847. The next prime is 41239861903. The reversal of 41239861871 is 17816893214.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 41239861871 - 2³⁴ = 24059992687 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 (41239861801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1586148521 + ... + 1586148546.

It is an arithmetic number, because the mean of its divisors is an integer number (11103039738).

Almost surely, 2^41239861871 is an apocalyptic number.

41239861871 is a deficient number, since it is larger than the sum of its proper divisors (3172297081).

41239861871 is a wasteful number, since it uses less digits than its factorization.

41239861871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172297080.

The product of its digits is 580608, while the sum is 50.

The spelling of 41239861871 in words is "forty-one billion, two hundred thirty-nine million, eight hundred sixty-one thousand, eight hundred seventy-one".