87040913839 has 16 divisors (see below), whose sum is σ = 98421428736. Its totient is φ = 76288608000.

The previous prime is 87040913837. The next prime is 87040913891. The reversal of 87040913839 is 93831904078.

It is not a de Polignac number, because 87040913839 - 2¹ = 87040913837 is a prime.

It is a super-2 number, since 2×87040913839² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87040913833) 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 15 ways as a sum of consecutive naturals, for example, 1221762 + ... + 1291039.

It is an arithmetic number, because the mean of its divisors is an integer number (6151339296).

Almost surely, 2^87040913839 is an apocalyptic number.

87040913839 is a deficient number, since it is larger than the sum of its proper divisors (11380514897).

87040913839 is a wasteful number, since it uses less digits than its factorization.

87040913839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512926.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 87040913839 in words is "eighty-seven billion, forty million, nine hundred thirteen thousand, eight hundred thirty-nine".