624143345225461 has 4 divisors (see below), whose sum is σ = 624143588910624. Its totient is φ = 624143101540300.

The previous prime is 624143345225443. The next prime is 624143345225489. The reversal of 624143345225461 is 164522543341426.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 624143345225461 - 2⁵ = 624143345225429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 624143345225399 and 624143345225408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624143345225761) 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, 117959425 + ... + 123136966.

It is an arithmetic number, because the mean of its divisors is an integer number (156035897227656).

Almost surely, 2^{624143345225461} is an apocalyptic number.

It is an amenable number.

624143345225461 is a deficient number, since it is larger than the sum of its proper divisors (243685163).

624143345225461 is a wasteful number, since it uses less digits than its factorization.

624143345225461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243685162.

The product of its digits is 16588800, while the sum is 52.

Adding to 624143345225461 its reverse (164522543341426), we get a palindrome (788665888566887).

The spelling of 624143345225461 in words is "six hundred twenty-four trillion, one hundred forty-three billion, three hundred forty-five million, two hundred twenty-five thousand, four hundred sixty-one".