210442548993 has 4 divisors (see below), whose sum is σ = 280590065328. Its totient is φ = 140295032660.

The previous prime is 210442548991. The next prime is 210442549003. The reversal of 210442548993 is 399845244012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210442548993 - 2¹ = 210442548991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210442548991) 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, 35073758163 + ... + 35073758168.

It is an arithmetic number, because the mean of its divisors is an integer number (70147516332).

Almost surely, 2^210442548993 is an apocalyptic number.

It is an amenable number.

210442548993 is a deficient number, since it is larger than the sum of its proper divisors (70147516335).

210442548993 is an equidigital number, since it uses as much as digits as its factorization.

210442548993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70147516334.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 210442548993 in words is "two hundred ten billion, four hundred forty-two million, five hundred forty-eight thousand, nine hundred ninety-three".