202538648929 has 6 divisors (see below), whose sum is σ = 213759627090. Its totient is φ = 191878719696.

The previous prime is 202538648909. The next prime is 202538648957. The reversal of 202538648929 is 929846835202.

It can be written as a sum of positive squares in only one way, i.e., 201744705600 + 793943329 = 449160^2 + 28177^2 .

It is a de Polignac number, because none of the positive numbers 2^k-202538648929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202538648909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280524084 + ... + 280524805.

It is an arithmetic number, because the mean of its divisors is an integer number (35626604515).

Almost surely, 2^202538648929 is an apocalyptic number.

It is an amenable number.

202538648929 is a deficient number, since it is larger than the sum of its proper divisors (11220978161).

202538648929 is an equidigital number, since it uses as much as digits as its factorization.

202538648929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561048927 (or 561048908 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 58.

The spelling of 202538648929 in words is "two hundred two billion, five hundred thirty-eight million, six hundred forty-eight thousand, nine hundred twenty-nine".