87391789055 has 8 divisors (see below), whose sum is σ = 110389628400. Its totient is φ = 66233776896.

The previous prime is 87391789031. The next prime is 87391789189. The reversal of 87391789055 is 55098719378.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87391789055 - 2²⁸ = 87123353599 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459956690 + ... + 459956879.

It is an arithmetic number, because the mean of its divisors is an integer number (13798703550).

Almost surely, 2^87391789055 is an apocalyptic number.

87391789055 is a deficient number, since it is larger than the sum of its proper divisors (22997839345).

87391789055 is a wasteful number, since it uses less digits than its factorization.

87391789055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919913593.

The product of its (nonzero) digits is 19051200, while the sum is 62.

The spelling of 87391789055 in words is "eighty-seven billion, three hundred ninety-one million, seven hundred eighty-nine thousand, fifty-five".