531707861424 has 20 divisors (see below), whose sum is σ = 1373578642136. Its totient is φ = 177235953792.

The previous prime is 531707861423. The next prime is 531707861471. The reversal of 531707861424 is 424168707135.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 11077247113 = 531707861424 / (5 + 3 + 1 + 7 + 0 + 7 + 8 + 6 + 1 + 4 + 2 + 4).

It is not an unprimeable number, because it can be changed into a prime (531707861423) 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, 5538623509 + ... + 5538623604.

Almost surely, 2^531707861424 is an apocalyptic number.

It is an amenable number.

531707861424 is an abundant number, since it is smaller than the sum of its proper divisors (841870780712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531707861424 is a wasteful number, since it uses less digits than its factorization.

531707861424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11077247124 (or 11077247118 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 531707861424 in words is "five hundred thirty-one billion, seven hundred seven million, eight hundred sixty-one thousand, four hundred twenty-four".