102442806402049 has 4 divisors (see below), whose sum is σ = 104622440580864. Its totient is φ = 100263172223236.

The previous prime is 102442806402019. The next prime is 102442806402091. The reversal of 102442806402049 is 940204608244201.

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 102442806402049 - 2¹¹ = 102442806400001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102442806402019) 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 3 ways as a sum of consecutive naturals, for example, 1089817089337 + ... + 1089817089430.

It is an arithmetic number, because the mean of its divisors is an integer number (26155610145216).

Almost surely, 2^{102442806402049} is an apocalyptic number.

It is an amenable number.

102442806402049 is a deficient number, since it is larger than the sum of its proper divisors (2179634178815).

102442806402049 is an equidigital number, since it uses as much as digits as its factorization.

102442806402049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179634178814.

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 102442806402049 in words is "one hundred two trillion, four hundred forty-two billion, eight hundred six million, four hundred two thousand, forty-nine".