531874242369 has 12 divisors (see below), whose sum is σ = 769922115456. Its totient is φ = 353816987832.

The previous prime is 531874242331. The next prime is 531874242409. The reversal of 531874242369 is 963242478135.

531874242369 is a `hidden beast` number, since 5 + 3 + 187 + 424 + 2 + 36 + 9 = 666.

It is not a de Polignac number, because 531874242369 - 2⁸ = 531874242113 is a prime.

It is a super-2 number, since 2×531874242369² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531874242169) 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 11 ways as a sum of consecutive naturals, for example, 63815637 + ... + 63823970.

It is an arithmetic number, because the mean of its divisors is an integer number (64160176288).

Almost surely, 2^531874242369 is an apocalyptic number.

It is an amenable number.

531874242369 is a deficient number, since it is larger than the sum of its proper divisors (238047873087).

531874242369 is a wasteful number, since it uses less digits than its factorization.

531874242369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127640076 (or 127640073 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 531874242369 in words is "five hundred thirty-one billion, eight hundred seventy-four million, two hundred forty-two thousand, three hundred sixty-nine".