20892888030 has 128 divisors (see below), whose sum is σ = 60362956800. Its totient is φ = 4621397760.

The previous prime is 20892888011. The next prime is 20892888041. The reversal of 20892888030 is 3088829802.

It is a Curzon number.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 286242 + ... + 351738.

It is an arithmetic number, because the mean of its divisors is an integer number (471585600).

Almost surely, 2^20892888030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20892888030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30181478400).

20892888030 is an abundant number, since it is smaller than the sum of its proper divisors (39470068770).

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

20892888030 is a wasteful number, since it uses less digits than its factorization.

20892888030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65559 (or 65545 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 20892888030 in words is "twenty billion, eight hundred ninety-two million, eight hundred eighty-eight thousand, thirty".