20713812192 has 144 divisors (see below), whose sum is σ = 59955556752. Its totient is φ = 6782054400.

The previous prime is 20713812169. The next prime is 20713812193. The reversal of 20713812192 is 29121831702.

20713812192 is a `hidden beast` number, since 20 + 71 + 381 + 2 + 192 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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 (20713812193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7736358 + ... + 7739034.

It is an arithmetic number, because the mean of its divisors is an integer number (416358033).

Almost surely, 2^20713812192 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 20713812192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29977778376).

20713812192 is an abundant number, since it is smaller than the sum of its proper divisors (39241744560).

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

20713812192 is a wasteful number, since it uses less digits than its factorization.

20713812192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161 (or 3150 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 20713812192 in words is "twenty billion, seven hundred thirteen million, eight hundred twelve thousand, one hundred ninety-two".