102405711411447 has 64 divisors (see below), whose sum is σ = 147338053632000. Its totient is φ = 63077278013568.

The previous prime is 102405711411389. The next prime is 102405711411473. The reversal of 102405711411447 is 744114117504201.

It is not a de Polignac number, because 102405711411447 - 2⁶ = 102405711411383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102405711411399 and 102405711411408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102405711411947) 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 63 ways as a sum of consecutive naturals, for example, 122890398 + ... + 123720900.

It is an arithmetic number, because the mean of its divisors is an integer number (2302157088000).

Almost surely, 2^{102405711411447} is an apocalyptic number.

102405711411447 is a deficient number, since it is larger than the sum of its proper divisors (44932342220553).

102405711411447 is a wasteful number, since it uses less digits than its factorization.

102405711411447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830940.

The product of its (nonzero) digits is 125440, while the sum is 42.

Adding to 102405711411447 its reverse (744114117504201), we get a palindrome (846519828915648).

The spelling of 102405711411447 in words is "one hundred two trillion, four hundred five billion, seven hundred eleven million, four hundred eleven thousand, four hundred forty-seven".