20826950452 has 48 divisors (see below), whose sum is σ = 45452631168. Its totient is φ = 8112251520.

The previous prime is 20826950449. The next prime is 20826950467. The reversal of 20826950452 is 25405962802.

It is a junction number, because it is equal to n+sod(n) for n = 20826950399 and 20826950408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1668378 + ... + 1680814.

It is an arithmetic number, because the mean of its divisors is an integer number (946929816).

Almost surely, 2^20826950452 is an apocalyptic number.

20826950452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20826950452 is an abundant number, since it is smaller than the sum of its proper divisors (24625680716).

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

20826950452 is a wasteful number, since it uses less digits than its factorization.

20826950452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17896 (or 17894 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 20826950452 in words is "twenty billion, eight hundred twenty-six million, nine hundred fifty thousand, four hundred fifty-two".