13442906932849 has 9 divisors (see below), whose sum is σ = 13519086539833. Its totient is φ = 13367154264772.

The previous prime is 13442906932843. The next prime is 13442906932877. The reversal of 13442906932849 is 94823960924431.

The square root of 13442906932849 is 3666457.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 13442906932849 - 2¹¹ = 13442906930801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13442906932843) 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 8 ways as a sum of consecutive naturals, for example, 656285562 + ... + 656306044.

Almost surely, 2^{13442906932849} is an apocalyptic number.

13442906932849 is the 3666457-th square number.

13442906932849 is the 1833229-th centered octagonal number.

It is an amenable number.

13442906932849 is a deficient number, since it is larger than the sum of its proper divisors (76179606984).

13442906932849 is an frugal number, since it uses more digits than its factorization.

13442906932849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41324 (or 20662 counting only the distinct ones).

The product of its (nonzero) digits is 80621568, while the sum is 64.

Multiplying 13442906932849 by its sum of digits (64), we get a square (860346043702336 = 29331656²).

The spelling of 13442906932849 in words is "thirteen trillion, four hundred forty-two billion, nine hundred six million, nine hundred thirty-two thousand, eight hundred forty-nine".