20626788312 has 192 divisors, whose sum is σ = 61491655680. Its totient is φ = 6207860736.

The previous prime is 20626788289. The next prime is 20626788323. The reversal of 20626788312 is 21388762602.

20626788312 is a `hidden beast` number, since 2 + 0 + 626 + 7 + 8 + 8 + 3 + 12 = 666.

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, 8676468 + ... + 8678844.

It is an arithmetic number, because the mean of its divisors is an integer number (320269040).

Almost surely, 2^20626788312 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 20626788312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30745827840).

20626788312 is an abundant number, since it is smaller than the sum of its proper divisors (40864867368).

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

20626788312 is a wasteful number, since it uses less digits than its factorization.

20626788312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602 (or 2595 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 20626788312 in words is "twenty billion, six hundred twenty-six million, seven hundred eighty-eight thousand, three hundred twelve".