20284231950 has 96 divisors (see below), whose sum is σ = 56141406720. Its totient is φ = 5385218400.

The previous prime is 20284231931. The next prime is 20284232041. The reversal of 20284231950 is 5913248202.

It is a happy number.

20284231950 is a `hidden beast` number, since 20 + 28 + 423 + 195 + 0 = 666.

It is a super-2 number, since 2×20284231950² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 273355 + ... + 339545.

It is an arithmetic number, because the mean of its divisors is an integer number (584806320).

Almost surely, 2^20284231950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20284231950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28070703360).

20284231950 is an abundant number, since it is smaller than the sum of its proper divisors (35857174770).

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

20284231950 is a wasteful number, since it uses less digits than its factorization.

20284231950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66439 (or 66428 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 20284231950 in words is "twenty billion, two hundred eighty-four million, two hundred thirty-one thousand, nine hundred fifty".