1029372839405 has 8 divisors (see below), whose sum is σ = 1235350683000. Its totient is φ = 823429421056.

The previous prime is 1029372839401. The next prime is 1029372839413. The reversal of 1029372839405 is 5049382739201.

It can be written as a sum of positive squares in 4 ways, for example, as 2681064841 + 1026691774564 = 51779^2 + 1013258^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1029372839405 - 2² = 1029372839401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029372839401) 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, 8540480 + ... + 8660169.

It is an arithmetic number, because the mean of its divisors is an integer number (154418835375).

Almost surely, 2^{1029372839405} is an apocalyptic number.

It is an amenable number.

1029372839405 is a deficient number, since it is larger than the sum of its proper divisors (205977843595).

1029372839405 is a wasteful number, since it uses less digits than its factorization.

1029372839405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17212623.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 1029372839405 in words is "one trillion, twenty-nine billion, three hundred seventy-two million, eight hundred thirty-nine thousand, four hundred five".