87209188022 has 16 divisors (see below), whose sum is σ = 142710591744. Its totient is φ = 39639249000.

The previous prime is 87209187983. The next prime is 87209188037. The reversal of 87209188022 is 22088190278.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1067447 + ... + 1146237.

It is an arithmetic number, because the mean of its divisors is an integer number (8919411984).

Almost surely, 2^87209188022 is an apocalyptic number.

87209188022 is a deficient number, since it is larger than the sum of its proper divisors (55501403722).

87209188022 is a wasteful number, since it uses less digits than its factorization.

87209188022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129115.

The product of its (nonzero) digits is 258048, while the sum is 47.

The spelling of 87209188022 in words is "eighty-seven billion, two hundred nine million, one hundred eighty-eight thousand, twenty-two".