87327246721 has 16 divisors (see below), whose sum is σ = 102865008960. Its totient is φ = 73088205120.

The previous prime is 87327246719. The next prime is 87327246737. The reversal of 87327246721 is 12764272378.

It is a cyclic number.

It is not a de Polignac number, because 87327246721 - 2¹ = 87327246719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87327246221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751450 + ... + 859843.

It is an arithmetic number, because the mean of its divisors is an integer number (6429063060).

Almost surely, 2^87327246721 is an apocalyptic number.

It is an amenable number.

87327246721 is a deficient number, since it is larger than the sum of its proper divisors (15537762239).

87327246721 is a wasteful number, since it uses less digits than its factorization.

87327246721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611696.

The product of its digits is 1580544, while the sum is 49.

The spelling of 87327246721 in words is "eighty-seven billion, three hundred twenty-seven million, two hundred forty-six thousand, seven hundred twenty-one".