40516487839 has 4 divisors (see below), whose sum is σ = 40516924000. Its totient is φ = 40516051680.

The previous prime is 40516487827. The next prime is 40516487857. The reversal of 40516487839 is 93878461504.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40516487839 - 2¹⁵ = 40516455071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40516487839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40516487339) 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, 16839 + ... + 285160.

It is an arithmetic number, because the mean of its divisors is an integer number (10129231000).

Almost surely, 2^40516487839 is an apocalyptic number.

40516487839 is a deficient number, since it is larger than the sum of its proper divisors (436161).

40516487839 is a wasteful number, since it uses less digits than its factorization.

40516487839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436160.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 40516487839 in words is "forty billion, five hundred sixteen million, four hundred eighty-seven thousand, eight hundred thirty-nine".