20219653792 has 96 divisors (see below), whose sum is σ = 43594395264. Its totient is φ = 9175680000.

The previous prime is 20219653781. The next prime is 20219653813. The reversal of 20219653792 is 29735691202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6342823 + ... + 6346009.

It is an arithmetic number, because the mean of its divisors is an integer number (454108284).

Almost surely, 2^20219653792 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 20219653792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21797197632).

20219653792 is an abundant number, since it is smaller than the sum of its proper divisors (23374741472).

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

20219653792 is a wasteful number, since it uses less digits than its factorization.

20219653792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462 (or 3454 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 20219653792 in words is "twenty billion, two hundred nineteen million, six hundred fifty-three thousand, seven hundred ninety-two".