87505551717670 has 8 divisors (see below), whose sum is σ = 157509993091824. Its totient is φ = 35002220687064.

The previous prime is 87505551717631. The next prime is 87505551717673. The reversal of 87505551717670 is 7671715550578.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87505551717673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4375277585874 + ... + 4375277585893.

It is an arithmetic number, because the mean of its divisors is an integer number (19688749136478).

Almost surely, 2^{87505551717670} is an apocalyptic number.

87505551717670 is a deficient number, since it is larger than the sum of its proper divisors (70004441374154).

87505551717670 is a wasteful number, since it uses less digits than its factorization.

87505551717670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8750555171774.

The product of its (nonzero) digits is 72030000, while the sum is 64.

The spelling of 87505551717670 in words is "eighty-seven trillion, five hundred five billion, five hundred fifty-one million, seven hundred seventeen thousand, six hundred seventy".