20528593848 has 192 divisors, whose sum is σ = 68091528960. Its totient is φ = 5453595648.

The previous prime is 20528593823. The next prime is 20528593853. The reversal of 20528593848 is 84839582502.

It is a happy number.

20528593848 is a `hidden beast` number, since 2 + 0 + 5 + 2 + 8 + 593 + 8 + 48 = 666.

It is a super-2 number, since 2×20528593848² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20528593794 and 20528593803.

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, 696711 + ... + 725577.

It is an arithmetic number, because the mean of its divisors is an integer number (354643380).

Almost surely, 2^20528593848 is an apocalyptic number.

20528593848 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20528593848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34045764480).

20528593848 is an abundant number, since it is smaller than the sum of its proper divisors (47562935112).

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

20528593848 is a wasteful number, since it uses less digits than its factorization.

20528593848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28986 (or 28979 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 20528593848 in words is "twenty billion, five hundred twenty-eight million, five hundred ninety-three thousand, eight hundred forty-eight".