87311846399 has 4 divisors (see below), whose sum is σ = 87313721664. Its totient is φ = 87309971136.

The previous prime is 87311846383. The next prime is 87311846423. The reversal of 87311846399 is 99364811378.

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 87311846399 - 2⁴ = 87311846383 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 (87311846329) 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, 865967 + ... + 961520.

It is an arithmetic number, because the mean of its divisors is an integer number (21828430416).

Almost surely, 2^87311846399 is an apocalyptic number.

87311846399 is a deficient number, since it is larger than the sum of its proper divisors (1875265).

87311846399 is a wasteful number, since it uses less digits than its factorization.

87311846399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875264.

The product of its digits is 7838208, while the sum is 59.

The spelling of 87311846399 in words is "eighty-seven billion, three hundred eleven million, eight hundred forty-six thousand, three hundred ninety-nine".