87193109202 has 32 divisors (see below), whose sum is σ = 186218887680. Its totient is φ = 27156917760.

The previous prime is 87193109189. The next prime is 87193109221. The reversal of 87193109202 is 20290139178.

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, 8077023 + ... + 8087810.

It is an arithmetic number, because the mean of its divisors is an integer number (5819340240).

Almost surely, 2^87193109202 is an apocalyptic number.

87193109202 is an abundant number, since it is smaller than the sum of its proper divisors (99025778478).

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

87193109202 is a wasteful number, since it uses less digits than its factorization.

87193109202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16164898.

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 87193109202 in words is "eighty-seven billion, one hundred ninety-three million, one hundred nine thousand, two hundred two".