20532852479942 has 24 divisors (see below), whose sum is σ = 33854076731496. Its totient is φ = 9333025416000.

The previous prime is 20532852479941. The next prime is 20532852480001. The reversal of 20532852479942 is 24997425823502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20532852479941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29450717 + ... + 30139847.

It is an arithmetic number, because the mean of its divisors is an integer number (1410586530479).

Almost surely, 2^{20532852479942} is an apocalyptic number.

20532852479942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20532852479942 is a deficient number, since it is larger than the sum of its proper divisors (13321224251554).

20532852479942 is a wasteful number, since it uses less digits than its factorization.

20532852479942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812276 (or 812265 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 62.

The spelling of 20532852479942 in words is "twenty trillion, five hundred thirty-two billion, eight hundred fifty-two million, four hundred seventy-nine thousand, nine hundred forty-two".