87221429576 has 32 divisors (see below), whose sum is σ = 173210076000. Its totient is φ = 41033554176.

The previous prime is 87221429573. The next prime is 87221429579. The reversal of 87221429576 is 67592412278.

It is an interprime number because it is at equal distance from previous prime (87221429573) and next prime (87221429579).

It is a super-3 number, since 3×87221429576³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (87221429573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390695 + ... + 571913.

It is an arithmetic number, because the mean of its divisors is an integer number (5412814875).

Almost surely, 2^87221429576 is an apocalyptic number.

It is an amenable number.

87221429576 is a deficient number, since it is larger than the sum of its proper divisors (85988646424).

87221429576 is a wasteful number, since it uses less digits than its factorization.

87221429576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184781 (or 184777 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The spelling of 87221429576 in words is "eighty-seven billion, two hundred twenty-one million, four hundred twenty-nine thousand, five hundred seventy-six".