545240466431 has 4 divisors (see below), whose sum is σ = 545509192200. Its totient is φ = 544971740664.

The previous prime is 545240466427. The next prime is 545240466437. The reversal of 545240466431 is 134664042545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134664042545 = 5 ⋅26932808509.

It is a cyclic number.

It is not a de Polignac number, because 545240466431 - 2² = 545240466427 is a prime.

It is a super-2 number, since 2×545240466431² (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 (545240466437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134359841 + ... + 134363898.

It is an arithmetic number, because the mean of its divisors is an integer number (136377298050).

Almost surely, 2^545240466431 is an apocalyptic number.

545240466431 is a deficient number, since it is larger than the sum of its proper divisors (268725769).

545240466431 is a wasteful number, since it uses less digits than its factorization.

545240466431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268725768.

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 545240466431 in words is "five hundred forty-five billion, two hundred forty million, four hundred sixty-six thousand, four hundred thirty-one".