531345014866523 has 16 divisors (see below), whose sum is σ = 636015566029536. Its totient is φ = 437471024240640.

The previous prime is 531345014866517. The next prime is 531345014866537. The reversal of 531345014866523 is 325668410543135.

It is not a de Polignac number, because 531345014866523 - 2²² = 531345010672219 is a prime.

It is a super-2 number, since 2×531345014866523² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531345014826523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35053760390 + ... + 35053775547.

It is an arithmetic number, because the mean of its divisors is an integer number (39750972876846).

Almost surely, 2^{531345014866523} is an apocalyptic number.

531345014866523 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

531345014866523 is a deficient number, since it is larger than the sum of its proper divisors (104670551163013).

531345014866523 is a wasteful number, since it uses less digits than its factorization.

531345014866523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70107536014.

The product of its (nonzero) digits is 31104000, while the sum is 56.

The spelling of 531345014866523 in words is "five hundred thirty-one trillion, three hundred forty-five billion, fourteen million, eight hundred sixty-six thousand, five hundred twenty-three".