87205051536 has 20 divisors (see below), whose sum is σ = 225279716592. Its totient is φ = 29068350496.

The previous prime is 87205051529. The next prime is 87205051537. The reversal of 87205051536 is 63515050278.

It is not an unprimeable number, because it can be changed into a prime (87205051537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908385906 + ... + 908386001.

Almost surely, 2^87205051536 is an apocalyptic number.

It is an amenable number.

87205051536 is an abundant number, since it is smaller than the sum of its proper divisors (138074665056).

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

87205051536 is a wasteful number, since it uses less digits than its factorization.

87205051536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816771918 (or 1816771912 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 87205051536 in words is "eighty-seven billion, two hundred five million, fifty-one thousand, five hundred thirty-six".