2189908947364 has 12 divisors (see below), whose sum is σ = 3832379603584. Its totient is φ = 1094943346344.

The previous prime is 2189908947353. The next prime is 2189908947389. The reversal of 2189908947364 is 4637498099812.

It is a junction number, because it is equal to n+sod(n) for n = 2189908947293 and 2189908947302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2330904 + ... + 3132559.

Almost surely, 2^{2189908947364} is an apocalyptic number.

It is an amenable number.

2189908947364 is a deficient number, since it is larger than the sum of its proper divisors (1642470656220).

2189908947364 is a wasteful number, since it uses less digits than its factorization.

2189908947364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563674 (or 5563672 counting only the distinct ones).

The product of its (nonzero) digits is 188116992, while the sum is 70.

The spelling of 2189908947364 in words is "two trillion, one hundred eighty-nine billion, nine hundred eight million, nine hundred forty-seven thousand, three hundred sixty-four".