87428221601 has 8 divisors (see below), whose sum is σ = 100476169920. Its totient is φ = 74519823888.

The previous prime is 87428221591. The next prime is 87428221649. The reversal of 87428221601 is 10612282478.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87428221601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87428221201) 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, 34886306 + ... + 34888811.

It is an arithmetic number, because the mean of its divisors is an integer number (12559521240).

Almost surely, 2^87428221601 is an apocalyptic number.

It is an amenable number.

87428221601 is a deficient number, since it is larger than the sum of its proper divisors (13047948319).

87428221601 is a wasteful number, since it uses less digits than its factorization.

87428221601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69775303.

The product of its (nonzero) digits is 86016, while the sum is 41.

The spelling of 87428221601 in words is "eighty-seven billion, four hundred twenty-eight million, two hundred twenty-one thousand, six hundred one".