102328444439 has 4 divisors (see below), whose sum is σ = 110199863256. Its totient is φ = 94457025624.

The previous prime is 102328444433. The next prime is 102328444483. The reversal of 102328444439 is 934444823201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 934444823201 = 9319 ⋅100273079.

It is not a de Polignac number, because 102328444439 - 2²⁴ = 102311667223 is a prime.

It is a super-2 number, since 2×102328444439² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102328444439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102328444433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3935709389 + ... + 3935709414.

It is an arithmetic number, because the mean of its divisors is an integer number (27549965814).

Almost surely, 2^102328444439 is an apocalyptic number.

102328444439 is a deficient number, since it is larger than the sum of its proper divisors (7871418817).

102328444439 is an equidigital number, since it uses as much as digits as its factorization.

102328444439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7871418816.

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 102328444439 in words is "one hundred two billion, three hundred twenty-eight million, four hundred forty-four thousand, four hundred thirty-nine".