13420438577 has 16 divisors (see below), whose sum is σ = 16618815360. Its totient is φ = 10553213952.

The previous prime is 13420438561. The next prime is 13420438579. The reversal of 13420438577 is 77583402431.

It is a cyclic number.

It is not a de Polignac number, because 13420438577 - 2⁴ = 13420438561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13420438579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437552 + ... + 467217.

It is an arithmetic number, because the mean of its divisors is an integer number (1038675960).

Almost surely, 2^13420438577 is an apocalyptic number.

It is an amenable number.

13420438577 is a deficient number, since it is larger than the sum of its proper divisors (3198376783).

13420438577 is a wasteful number, since it uses less digits than its factorization.

13420438577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904952.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 13420438577 in words is "thirteen billion, four hundred twenty million, four hundred thirty-eight thousand, five hundred seventy-seven".