531542889672 has 16 divisors (see below), whose sum is σ = 1328857224240. Its totient is φ = 177180963216.

The previous prime is 531542889641. The next prime is 531542889673. The reversal of 531542889672 is 276988245135.

It is not an unprimeable number, because it can be changed into a prime (531542889673) 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, 11073810178 + ... + 11073810225.

It is an arithmetic number, because the mean of its divisors is an integer number (83053576515).

Almost surely, 2^531542889672 is an apocalyptic number.

It is an amenable number.

531542889672 is an abundant number, since it is smaller than the sum of its proper divisors (797314334568).

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

531542889672 is a wasteful number, since it uses less digits than its factorization.

531542889672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22147620412 (or 22147620408 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 60.

The spelling of 531542889672 in words is "five hundred thirty-one billion, five hundred forty-two million, eight hundred eighty-nine thousand, six hundred seventy-two".