87820082536 has 64 divisors (see below), whose sum is σ = 176039930880. Its totient is φ = 40926842880.

The previous prime is 87820082527. The next prime is 87820082549. The reversal of 87820082536 is 63528002878.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 87820082536.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32440495 + ... + 32443201.

It is an arithmetic number, because the mean of its divisors is an integer number (2750623920).

Almost surely, 2^87820082536 is an apocalyptic number.

It is an amenable number.

87820082536 is an abundant number, since it is smaller than the sum of its proper divisors (88219848344).

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

87820082536 is a wasteful number, since it uses less digits than its factorization.

87820082536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4954 (or 4950 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 87820082536 in words is "eighty-seven billion, eight hundred twenty million, eighty-two thousand, five hundred thirty-six".