87873437878 has 16 divisors (see below), whose sum is σ = 132491083536. Its totient is φ = 43710156000.

The previous prime is 87873437851. The next prime is 87873437879.

87873437878 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87873437879) 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, 325600 + ... + 530812.

It is an arithmetic number, because the mean of its divisors is an integer number (8280692721).

Almost surely, 2^87873437878 is an apocalyptic number.

87873437878 is a deficient number, since it is larger than the sum of its proper divisors (44617645658).

87873437878 is a wasteful number, since it uses less digits than its factorization.

87873437878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206319.

The product of its digits is 354041856, while the sum is 70.

The spelling of 87873437878 in words is "eighty-seven billion, eight hundred seventy-three million, four hundred thirty-seven thousand, eight hundred seventy-eight".