20235872412 has 288 divisors, whose sum is σ = 66134154240. Its totient is φ = 5314014720.

The previous prime is 20235872411. The next prime is 20235872413. The reversal of 20235872412 is 21427853202.

20235872412 is a `hidden beast` number, since 2 + 0 + 235 + 8 + 7 + 2 + 412 = 666.

It is an interprime number because it is at equal distance from previous prime (20235872411) and next prime (20235872413).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20235872411) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 3865837 + ... + 3871067.

It is an arithmetic number, because the mean of its divisors is an integer number (229632480).

Almost surely, 2^20235872412 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 20235872412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33067077120).

20235872412 is an abundant number, since it is smaller than the sum of its proper divisors (45898281828).

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

20235872412 is a wasteful number, since it uses less digits than its factorization.

20235872412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318 (or 5303 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 20235872412 in words is "twenty billion, two hundred thirty-five million, eight hundred seventy-two thousand, four hundred twelve".