2184661947264 has 64 divisors (see below), whose sum is σ = 5803534567440. Its totient is φ = 728154607616.

The previous prime is 2184661947257. The next prime is 2184661947283. The reversal of 2184661947264 is 4627491664812.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2184661947198 and 2184661947207.

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, 4076494 + ... + 4581170.

Almost surely, 2^{2184661947264} is an apocalyptic number.

2184661947264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2184661947264 is an abundant number, since it is smaller than the sum of its proper divisors (3618872620176).

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

2184661947264 is a wasteful number, since it uses less digits than its factorization.

2184661947264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515967 (or 515955 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 60.

The spelling of 2184661947264 in words is "two trillion, one hundred eighty-four billion, six hundred sixty-one million, nine hundred forty-seven thousand, two hundred sixty-four".