219690052764 has 192 divisors, whose sum is σ = 665050767360. Its totient is φ = 54813024000.

The previous prime is 219690052717. The next prime is 219690052787. The reversal of 219690052764 is 467250096912.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15408639 + ... + 15422889.

It is an arithmetic number, because the mean of its divisors is an integer number (3463806080).

Almost surely, 2^219690052764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 219690052764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332525383680).

219690052764 is an abundant number, since it is smaller than the sum of its proper divisors (445360714596).

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

219690052764 is a wasteful number, since it uses less digits than its factorization.

219690052764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15040 (or 15038 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 219690052764 in words is "two hundred nineteen billion, six hundred ninety million, fifty-two thousand, seven hundred sixty-four".