202485725643 has 4 divisors (see below), whose sum is σ = 269980967528. Its totient is φ = 134990483760.

The previous prime is 202485725641. The next prime is 202485725647. The reversal of 202485725643 is 346527584202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 202485725643 - 2¹ = 202485725641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202485725592 and 202485725601.

It is not an unprimeable number, because it can be changed into a prime (202485725641) 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, 33747620938 + ... + 33747620943.

It is an arithmetic number, because the mean of its divisors is an integer number (67495241882).

Almost surely, 2^202485725643 is an apocalyptic number.

202485725643 is a deficient number, since it is larger than the sum of its proper divisors (67495241885).

202485725643 is an equidigital number, since it uses as much as digits as its factorization.

202485725643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67495241884.

The product of its (nonzero) digits is 3225600, while the sum is 48.

The spelling of 202485725643 in words is "two hundred two billion, four hundred eighty-five million, seven hundred twenty-five thousand, six hundred forty-three".