87825513161 has 8 divisors (see below), whose sum is σ = 88514426304. Its totient is φ = 87138239760.

The previous prime is 87825513157. The next prime is 87825513173. The reversal of 87825513161 is 16131552878.

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 87825513161 - 2² = 87825513157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87825510161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302285 + ... + 516746.

It is an arithmetic number, because the mean of its divisors is an integer number (11064303288).

Almost surely, 2^87825513161 is an apocalyptic number.

It is an amenable number.

87825513161 is a deficient number, since it is larger than the sum of its proper divisors (688913143).

87825513161 is a wasteful number, since it uses less digits than its factorization.

87825513161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819871.

The product of its digits is 403200, while the sum is 47.

The spelling of 87825513161 in words is "eighty-seven billion, eight hundred twenty-five million, five hundred thirteen thousand, one hundred sixty-one".