87240324480 has 64 divisors (see below), whose sum is σ = 278078540400. Its totient is φ = 23264086016.

The previous prime is 87240324473. The next prime is 87240324491. The reversal of 87240324480 is 8442304278.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×87240324480² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 22716915 + ... + 22720754.

Almost surely, 2^87240324480 is an apocalyptic number.

87240324480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87240324480 is an abundant number, since it is smaller than the sum of its proper divisors (190838215920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87240324480 is a wasteful number, since it uses less digits than its factorization.

87240324480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45437691 (or 45437679 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 42.

The spelling of 87240324480 in words is "eighty-seven billion, two hundred forty million, three hundred twenty-four thousand, four hundred eighty".