87298825681 has 8 divisors (see below), whose sum is σ = 92032257024. Its totient is φ = 82685228160.

The previous prime is 87298825643. The next prime is 87298825699. The reversal of 87298825681 is 18652889278.

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 87298825681 - 2²⁷ = 87164607953 is a prime.

It is a super-2 number, since 2×87298825681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87298825781) 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 7 ways as a sum of consecutive naturals, for example, 29956960 + ... + 29959873.

It is an arithmetic number, because the mean of its divisors is an integer number (11504032128).

Almost surely, 2^87298825681 is an apocalyptic number.

It is an amenable number.

87298825681 is a deficient number, since it is larger than the sum of its proper divisors (4733431343).

87298825681 is a wasteful number, since it uses less digits than its factorization.

87298825681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59916911.

The product of its digits is 30965760, while the sum is 64.

The spelling of 87298825681 in words is "eighty-seven billion, two hundred ninety-eight million, eight hundred twenty-five thousand, six hundred eighty-one".