54645120352123 has 4 divisors (see below), whose sum is σ = 62451566116720. Its totient is φ = 46838674587528.

The previous prime is 54645120352111. The next prime is 54645120352181. The reversal of 54645120352123 is 32125302154645.

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

It is a cyclic number.

It is not a de Polignac number, because 54645120352123 - 2⁹ = 54645120351611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54645120352123.

It is not an unprimeable number, because it can be changed into a prime (54645120332123) 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, 3903222882288 + ... + 3903222882301.

It is an arithmetic number, because the mean of its divisors is an integer number (15612891529180).

Almost surely, 2^{54645120352123} is an apocalyptic number.

54645120352123 is a deficient number, since it is larger than the sum of its proper divisors (7806445764597).

54645120352123 is an equidigital number, since it uses as much as digits as its factorization.

54645120352123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7806445764596.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 54645120352123 in words is "fifty-four trillion, six hundred forty-five billion, one hundred twenty million, three hundred fifty-two thousand, one hundred twenty-three".