545323662431 has 16 divisors (see below), whose sum is σ = 569413629600. Its totient is φ = 521731082880.

The previous prime is 545323662361. The next prime is 545323662437. The reversal of 545323662431 is 134266323545.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 545323662431 - 2¹⁴ = 545323646047 is a prime.

It is a super-2 number, since 2×545323662431² (a number of 24 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 (545323662437) 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, 7903520 + ... + 7972218.

It is an arithmetic number, because the mean of its divisors is an integer number (35588351850).

Almost surely, 2^545323662431 is an apocalyptic number.

545323662431 is a deficient number, since it is larger than the sum of its proper divisors (24089967169).

545323662431 is a wasteful number, since it uses less digits than its factorization.

545323662431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72314.

The product of its digits is 1555200, while the sum is 44.

Adding to 545323662431 its reverse (134266323545), we get a palindrome (679589985976).

The spelling of 545323662431 in words is "five hundred forty-five billion, three hundred twenty-three million, six hundred sixty-two thousand, four hundred thirty-one".