13545506623 has 8 divisors (see below), whose sum is σ = 14829134976. Its totient is φ = 12270581400.

The previous prime is 13545506621. The next prime is 13545506629. The reversal of 13545506623 is 32660554531.

13545506623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13545506623 - 2¹ = 13545506621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13545506621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2172523 + ... + 2178748.

It is an arithmetic number, because the mean of its divisors is an integer number (1853641872).

Almost surely, 2^13545506623 is an apocalyptic number.

13545506623 is a deficient number, since it is larger than the sum of its proper divisors (1283628353).

13545506623 is a wasteful number, since it uses less digits than its factorization.

13545506623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4351565.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 13545506623 in words is "thirteen billion, five hundred forty-five million, five hundred six thousand, six hundred twenty-three".