2990921207184 has 135 divisors (see below), whose sum is σ = 8651009995329. Its totient is φ = 964605761280.

The previous prime is 2990921207173. The next prime is 2990921207203. The reversal of 2990921207184 is 4817021290992.

It is a happy number.

The square root of 2990921207184 is 1729428.

It is a perfect power (a square), and thus also a powerful number.

2990921207184 is a `hidden beast` number, since 299 + 0 + 92 + 120 + 71 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2926932445584 + 63988761600 = 1710828^2 + 252960^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2990921207184.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 643344892 + ... + 643349540.

Almost surely, 2^{2990921207184} is an apocalyptic number.

2990921207184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

2990921207184 is the 1729428-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2990921207184

2990921207184 is an abundant number, since it is smaller than the sum of its proper divisors (5660088788145).

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

2990921207184 is an frugal number, since it uses more digits than its factorization.

2990921207184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9374 (or 4685 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 2990921207184 in words is "two trillion, nine hundred ninety billion, nine hundred twenty-one million, two hundred seven thousand, one hundred eighty-four".