87002408540 has 24 divisors (see below), whose sum is σ = 183033097632. Its totient is φ = 34738479680.

The previous prime is 87002408533. The next prime is 87002408551. The reversal of 87002408540 is 4580420078.

It is a super-2 number, since 2×87002408540² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87002408494 and 87002408503.

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, 3893816 + ... + 3916095.

It is an arithmetic number, because the mean of its divisors is an integer number (7626379068).

Almost surely, 2^87002408540 is an apocalyptic number.

It is an amenable number.

87002408540 is an abundant number, since it is smaller than the sum of its proper divisors (96030689092).

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

87002408540 is a wasteful number, since it uses less digits than its factorization.

87002408540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7810477 (or 7810475 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The spelling of 87002408540 in words is "eighty-seven billion, two million, four hundred eight thousand, five hundred forty".