531658452973 has 4 divisors (see below), whose sum is σ = 531870863968. Its totient is φ = 531446041980.

The previous prime is 531658452971. The next prime is 531658452977. The reversal of 531658452973 is 379254856135.

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, and also an emirpimes, since its reverse is a distinct semiprime: 379254856135 = 5 ⋅75850971227.

It is a cyclic number.

It is not a de Polignac number, because 531658452973 - 2¹ = 531658452971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531658452971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106201743 + ... + 106206748.

It is an arithmetic number, because the mean of its divisors is an integer number (132967715992).

Almost surely, 2^531658452973 is an apocalyptic number.

It is an amenable number.

531658452973 is a deficient number, since it is larger than the sum of its proper divisors (212410995).

531658452973 is a wasteful number, since it uses less digits than its factorization.

531658452973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212410994.

The product of its digits is 27216000, while the sum is 58.

The spelling of 531658452973 in words is "five hundred thirty-one billion, six hundred fifty-eight million, four hundred fifty-two thousand, nine hundred seventy-three".