86487287904 has 72 divisors (see below), whose sum is σ = 246064854672. Its totient is φ = 28815425280.

The previous prime is 86487287869. The next prime is 86487287923. The reversal of 86487287904 is 40978278468.

86487287904 is a `hidden beast` number, since 86 + 487 + 2 + 8 + 79 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 546477 + ... + 686739.

It is an arithmetic number, because the mean of its divisors is an integer number (3417567426).

Almost surely, 2^86487287904 is an apocalyptic number.

It is an amenable number.

86487287904 is an abundant number, since it is smaller than the sum of its proper divisors (159577566768).

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

86487287904 is a wasteful number, since it uses less digits than its factorization.

86487287904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142420 (or 142409 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 63.

The spelling of 86487287904 in words is "eighty-six billion, four hundred eighty-seven million, two hundred eighty-seven thousand, nine hundred four".