53638844405 has 8 divisors (see below), whose sum is σ = 65089834200. Its totient is φ = 42428928256.

The previous prime is 53638844383. The next prime is 53638844419. The reversal of 53638844405 is 50444883635.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4896360676 + 48742483729 = 69974^2 + 220777^2 .

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 53638844405 - 2²² = 53634650101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60267920 + ... + 60268809.

It is an arithmetic number, because the mean of its divisors is an integer number (8136229275).

Almost surely, 2^53638844405 is an apocalyptic number.

It is an amenable number.

53638844405 is a deficient number, since it is larger than the sum of its proper divisors (11450989795).

53638844405 is a wasteful number, since it uses less digits than its factorization.

53638844405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120536823.

The product of its (nonzero) digits is 5529600, while the sum is 50.

The spelling of 53638844405 in words is "fifty-three billion, six hundred thirty-eight million, eight hundred forty-four thousand, four hundred five".