20892237312 has 320 divisors, whose sum is σ = 63002396160. Its totient is φ = 6116081664.

The previous prime is 20892237307. The next prime is 20892237313. The reversal of 20892237312 is 21373229802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20892237313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25824364 + ... + 25825172.

It is an arithmetic number, because the mean of its divisors is an integer number (196882488).

Almost surely, 2^20892237312 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 20892237312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31501198080).

20892237312 is an abundant number, since it is smaller than the sum of its proper divisors (42110158848).

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

20892237312 is a wasteful number, since it uses less digits than its factorization.

20892237312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 20892237312 in words is "twenty billion, eight hundred ninety-two million, two hundred thirty-seven thousand, three hundred twelve".