20853526342452 has 12 divisors (see below), whose sum is σ = 48658228132416. Its totient is φ = 6951175447480.

The previous prime is 20853526342447. The next prime is 20853526342457. The reversal of 20853526342452 is 25424362535802.

It is an interprime number because it is at equal distance from previous prime (20853526342447) and next prime (20853526342457).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20853526342395 and 20853526342404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20853526342457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868896930924 + ... + 868896930947.

It is an arithmetic number, because the mean of its divisors is an integer number (4054852344368).

Almost surely, 2^{20853526342452} is an apocalyptic number.

It is an amenable number.

20853526342452 is an abundant number, since it is smaller than the sum of its proper divisors (27804701789964).

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

20853526342452 is a wasteful number, since it uses less digits than its factorization.

20853526342452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737793861878 (or 1737793861876 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 51.

The spelling of 20853526342452 in words is "twenty trillion, eight hundred fifty-three billion, five hundred twenty-six million, three hundred forty-two thousand, four hundred fifty-two".