20834192512 has 256 divisors, whose sum is σ = 53285126400. Its totient is φ = 7898923008.

The previous prime is 20834192473. The next prime is 20834192527. The reversal of 20834192512 is 21529143802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55855558 + ... + 55855930.

It is an arithmetic number, because the mean of its divisors is an integer number (208145025).

Almost surely, 2^20834192512 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 20834192512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26642563200).

20834192512 is an abundant number, since it is smaller than the sum of its proper divisors (32450933888).

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

20834192512 is a wasteful number, since it uses less digits than its factorization.

20834192512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 20834192512 in words is "twenty billion, eight hundred thirty-four million, one hundred ninety-two thousand, five hundred twelve".