545621838279 has 16 divisors (see below), whose sum is σ = 831435330048. Its totient is φ = 311779566432.

The previous prime is 545621838277. The next prime is 545621838299. The reversal of 545621838279 is 972838126545.

545621838279 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 545621838279 - 2¹ = 545621838277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545621838271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1943469 + ... + 2206425.

It is an arithmetic number, because the mean of its divisors is an integer number (51964708128).

Almost surely, 2^545621838279 is an apocalyptic number.

545621838279 is a deficient number, since it is larger than the sum of its proper divisors (285813491769).

545621838279 is a wasteful number, since it uses less digits than its factorization.

545621838279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361774.

The product of its digits is 29030400, while the sum is 60.

The spelling of 545621838279 in words is "five hundred forty-five billion, six hundred twenty-one million, eight hundred thirty-eight thousand, two hundred seventy-nine".