545451231231 has 16 divisors (see below), whose sum is σ = 855609775200. Its totient is φ = 342243909504.

The previous prime is 545451231211. The next prime is 545451231233. The reversal of 545451231231 is 132132154545.

545451231231 is a `hidden beast` number, since 54 + 54 + 512 + 3 + 12 + 31 = 666.

It is not a de Polignac number, because 545451231231 - 2⁶ = 545451231167 is a prime.

It is a super-2 number, since 2×545451231231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545451231233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594172996 + ... + 594173913.

It is an arithmetic number, because the mean of its divisors is an integer number (53475610950).

Almost surely, 2^545451231231 is an apocalyptic number.

545451231231 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

545451231231 is a deficient number, since it is larger than the sum of its proper divisors (310158543969).

545451231231 is a wasteful number, since it uses less digits than its factorization.

545451231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188346935 (or 1188346929 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 545451231231 its reverse (132132154545), we get a palindrome (677583385776).

The spelling of 545451231231 in words is "five hundred forty-five billion, four hundred fifty-one million, two hundred thirty-one thousand, two hundred thirty-one".