545440543031 has 8 divisors (see below), whose sum is σ = 546872966640. Its totient is φ = 544008275392.

The previous prime is 545440543001. The next prime is 545440543033. The reversal of 545440543031 is 130345044545.

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 545440543031 - 2²² = 545436348727 is a prime.

It is a super-2 number, since 2×545440543031² (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 (545440543033) 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, 11117651 + ... + 11166603.

It is an arithmetic number, because the mean of its divisors is an integer number (68359120830).

Almost surely, 2^545440543031 is an apocalyptic number.

545440543031 is a deficient number, since it is larger than the sum of its proper divisors (1432423609).

545440543031 is a wasteful number, since it uses less digits than its factorization.

545440543031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77985.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 545440543031 its reverse (130345044545), we get a palindrome (675785587576).

The spelling of 545440543031 in words is "five hundred forty-five billion, four hundred forty million, five hundred forty-three thousand, thirty-one".