531738514657 has 4 divisors (see below), whose sum is σ = 607701159616. Its totient is φ = 455775869700.

The previous prime is 531738514651. The next prime is 531738514729. The reversal of 531738514657 is 756415837135.

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 531738514657 - 2⁷ = 531738514529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531738514598 and 531738514607.

It is not an unprimeable number, because it can be changed into a prime (531738514651) 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, 37981322469 + ... + 37981322482.

It is an arithmetic number, because the mean of its divisors is an integer number (151925289904).

Almost surely, 2^531738514657 is an apocalyptic number.

It is an amenable number.

531738514657 is a deficient number, since it is larger than the sum of its proper divisors (75962644959).

531738514657 is an equidigital number, since it uses as much as digits as its factorization.

531738514657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75962644958.

The product of its digits is 10584000, while the sum is 55.

The spelling of 531738514657 in words is "five hundred thirty-one billion, seven hundred thirty-eight million, five hundred fourteen thousand, six hundred fifty-seven".