20452819068 has 72 divisors (see below), whose sum is σ = 59717876400. Its totient is φ = 5833244160.

The previous prime is 20452819043. The next prime is 20452819117. The reversal of 20452819068 is 86091825402.

20452819068 is a `hidden beast` number, since 2 + 0 + 452 + 8 + 190 + 6 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1512343 + ... + 1525806.

It is an arithmetic number, because the mean of its divisors is an integer number (829414950).

Almost surely, 2^20452819068 is an apocalyptic number.

It is an amenable number.

20452819068 is an abundant number, since it is smaller than the sum of its proper divisors (39265057332).

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

20452819068 is a wasteful number, since it uses less digits than its factorization.

20452819068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038187 (or 3038182 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 20452819068 in words is "twenty billion, four hundred fifty-two million, eight hundred nineteen thousand, sixty-eight".