87199440339 has 32 divisors (see below), whose sum is σ = 127348962048. Its totient is φ = 52634672000.

The previous prime is 87199440329. The next prime is 87199440353. The reversal of 87199440339 is 93304499178.

It is a cyclic number.

It is not a de Polignac number, because 87199440339 - 2⁹ = 87199439827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87199440329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8559829 + ... + 8570009.

It is an arithmetic number, because the mean of its divisors is an integer number (3979655064).

Almost surely, 2^87199440339 is an apocalyptic number.

87199440339 is a deficient number, since it is larger than the sum of its proper divisors (40149521709).

87199440339 is a wasteful number, since it uses less digits than its factorization.

87199440339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11219.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 87199440339 in words is "eighty-seven billion, one hundred ninety-nine million, four hundred forty thousand, three hundred thirty-nine".