1042405444105 has 8 divisors (see below), whose sum is σ = 1250929809864. Its totient is φ = 833895504000.

The previous prime is 1042405444043. The next prime is 1042405444109. The reversal of 1042405444105 is 5014445042401.

It can be written as a sum of positive squares in 4 ways, for example, as 533495846464 + 508909597641 = 730408^2 + 713379^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1042405444105 - 2⁷ = 1042405443977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042405444109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3446796 + ... + 3737005.

It is an arithmetic number, because the mean of its divisors is an integer number (156366226233).

Almost surely, 2^{1042405444105} is an apocalyptic number.

It is an amenable number.

1042405444105 is a deficient number, since it is larger than the sum of its proper divisors (208524365759).

1042405444105 is an equidigital number, since it uses as much as digits as its factorization.

1042405444105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7212827.

The product of its (nonzero) digits is 51200, while the sum is 34.

The spelling of 1042405444105 in words is "one trillion, forty-two billion, four hundred five million, four hundred forty-four thousand, one hundred five".