545440432331 has 8 divisors (see below), whose sum is σ = 558227349504. Its totient is φ = 532658163240.

The previous prime is 545440432319. The next prime is 545440432349. The reversal of 545440432331 is 133234044545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545440432331 - 2³⁴ = 528260563147 is a prime.

It is a super-2 number, since 2×545440432331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545440432391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924011 + ... + 1394516.

It is an arithmetic number, because the mean of its divisors is an integer number (69778418688).

Almost surely, 2^545440432331 is an apocalyptic number.

545440432331 is a deficient number, since it is larger than the sum of its proper divisors (12786917173).

545440432331 is a wasteful number, since it uses less digits than its factorization.

545440432331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324041.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 545440432331 its reverse (133234044545), we get a palindrome (678674476876).

The spelling of 545440432331 in words is "five hundred forty-five billion, four hundred forty million, four hundred thirty-two thousand, three hundred thirty-one".