87547012902 has 48 divisors (see below), whose sum is σ = 190989070272. Its totient is φ = 28981929600.

The previous prime is 87547012901. The next prime is 87547012909. The reversal of 87547012902 is 20921074578.

It is a happy number.

87547012902 is a `hidden beast` number, since 8 + 7 + 547 + 0 + 12 + 90 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87547012901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6637338 + ... + 6650514.

It is an arithmetic number, because the mean of its divisors is an integer number (3978938964).

Almost surely, 2^87547012902 is an apocalyptic number.

87547012902 is an abundant number, since it is smaller than the sum of its proper divisors (103442057370).

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

87547012902 is a wasteful number, since it uses less digits than its factorization.

87547012902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15693 (or 15690 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 87547012902 in words is "eighty-seven billion, five hundred forty-seven million, twelve thousand, nine hundred two".