2188196902 has 16 divisors (see below), whose sum is σ = 3520240560. Its totient is φ = 1016956512.

The previous prime is 2188196893. The next prime is 2188196917. The reversal of 2188196902 is 2096918812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541233 + ... + 545260.

It is an arithmetic number, because the mean of its divisors is an integer number (220015035).

Almost surely, 2^2188196902 is an apocalyptic number.

2188196902 is a deficient number, since it is larger than the sum of its proper divisors (1332043658).

2188196902 is a wasteful number, since it uses less digits than its factorization.

2188196902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086567.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 2188196902 is about 46778.1669371514. The cubic root of 2188196902 is about 1298.2613645222.

The spelling of 2188196902 in words is "two billion, one hundred eighty-eight million, one hundred ninety-six thousand, nine hundred two".