20633858485268 has 96 divisors (see below), whose sum is σ = 43671794073600. Its totient is φ = 8346643958016.

The previous prime is 20633858485249. The next prime is 20633858485277. The reversal of 20633858485268 is 86258485833602.

It is a super-2 number, since 2×20633858485268² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20633858485198 and 20633858485207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2162648 + ... + 6778256.

It is an arithmetic number, because the mean of its divisors is an integer number (454914521600).

Almost surely, 2^{20633858485268} is an apocalyptic number.

20633858485268 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 20633858485268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21835897036800).

20633858485268 is an abundant number, since it is smaller than the sum of its proper divisors (23037935588332).

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

20633858485268 is a wasteful number, since it uses less digits than its factorization.

20633858485268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4615789 (or 4615787 counting only the distinct ones).

The product of its (nonzero) digits is 530841600, while the sum is 68.

The spelling of 20633858485268 in words is "twenty trillion, six hundred thirty-three billion, eight hundred fifty-eight million, four hundred eighty-five thousand, two hundred sixty-eight".