545627726544 has 160 divisors (see below), whose sum is σ = 1456104124800. Its totient is φ = 175928150016.

The previous prime is 545627726543. The next prime is 545627726593. The reversal of 545627726544 is 445627726545.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545627726543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279951682 + ... + 279953630.

It is an arithmetic number, because the mean of its divisors is an integer number (9100650780).

Almost surely, 2^545627726544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545627726544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (728052062400).

545627726544 is an abundant number, since it is smaller than the sum of its proper divisors (910476398256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545627726544 is a wasteful number, since it uses less digits than its factorization.

545627726544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837 (or 2831 counting only the distinct ones).

The product of its digits is 56448000, while the sum is 57.

Subtracting from 545627726544 its reverse (445627726545), we obtain a palindrome (99999999999).

The spelling of 545627726544 in words is "five hundred forty-five billion, six hundred twenty-seven million, seven hundred twenty-six thousand, five hundred forty-four".