545215363431 has 16 divisors (see below), whose sum is σ = 746622755424. Its totient is φ = 353643007104.

The previous prime is 545215363393. The next prime is 545215363453. The reversal of 545215363431 is 134363512545.

It is a happy number.

It is not a de Polignac number, because 545215363431 - 2²⁷ = 545081145703 is a prime.

It is a super-2 number, since 2×545215363431² (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 (545215363481) 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, 6674125 + ... + 6755321.

It is an arithmetic number, because the mean of its divisors is an integer number (46663922214).

Almost surely, 2^545215363431 is an apocalyptic number.

545215363431 is a deficient number, since it is larger than the sum of its proper divisors (201407391993).

545215363431 is a wasteful number, since it uses less digits than its factorization.

545215363431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141730.

The product of its digits is 648000, while the sum is 42.

Adding to 545215363431 its reverse (134363512545), we get a palindrome (679578875976).

The spelling of 545215363431 in words is "five hundred forty-five billion, two hundred fifteen million, three hundred sixty-three thousand, four hundred thirty-one".