134346636105623 has 4 divisors (see below), whose sum is σ = 134371547410128. Its totient is φ = 134321724801120.

The previous prime is 134346636105611. The next prime is 134346636105637. The reversal of 134346636105623 is 326501636643431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134346636105623 is a prime.

It is a super-2 number, since 2×134346636105623² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134346636105683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12455644163 + ... + 12455654948.

It is an arithmetic number, because the mean of its divisors is an integer number (33592886852532).

Almost surely, 2^{134346636105623} is an apocalyptic number.

134346636105623 is a deficient number, since it is larger than the sum of its proper divisors (24911304505).

134346636105623 is an equidigital number, since it uses as much as digits as its factorization.

134346636105623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24911304504.

The product of its (nonzero) digits is 16796160, while the sum is 53.

The spelling of 134346636105623 in words is "one hundred thirty-four trillion, three hundred forty-six billion, six hundred thirty-six million, one hundred five thousand, six hundred twenty-three".