531543342545140 has 96 divisors (see below), whose sum is σ = 1168726559293440. Its totient is φ = 202817489884800.

The previous prime is 531543342545107. The next prime is 531543342545153. The reversal of 531543342545140 is 41545243345135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205742301 + ... + 208309819.

It is an arithmetic number, because the mean of its divisors is an integer number (12174234992640).

Almost surely, 2^{531543342545140} 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 531543342545140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (584363279646720).

531543342545140 is an abundant number, since it is smaller than the sum of its proper divisors (637183216748300).

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

531543342545140 is a wasteful number, since it uses less digits than its factorization.

531543342545140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572333 (or 2572331 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 49.

The spelling of 531543342545140 in words is "five hundred thirty-one trillion, five hundred forty-three billion, three hundred forty-two million, five hundred forty-five thousand, one hundred forty".