531276530540 has 288 divisors, whose sum is σ = 1438428741120. Its totient is φ = 160868395008.

The previous prime is 531276530503. The next prime is 531276530563. The reversal of 531276530540 is 45035672135.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 91929371 + ... + 91935149.

It is an arithmetic number, because the mean of its divisors is an integer number (4994544240).

Almost surely, 2^531276530540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531276530540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719214370560).

531276530540 is an abundant number, since it is smaller than the sum of its proper divisors (907152210580).

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

531276530540 is a wasteful number, since it uses less digits than its factorization.

531276530540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5957 (or 5936 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 41.

The spelling of 531276530540 in words is "five hundred thirty-one billion, two hundred seventy-six million, five hundred thirty thousand, five hundred forty".