531520400014340 has 48 divisors (see below), whose sum is σ = 1217911859648064. Its totient is φ = 193240948118400.

The previous prime is 531520400014327. The next prime is 531520400014363. The reversal of 531520400014340 is 43410004025135.

It is a junction number, because it is equal to n+sod(n) for n = 531520400014297 and 531520400014306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243896099 + ... + 246065738.

It is an arithmetic number, because the mean of its divisors is an integer number (25373163742668).

Almost surely, 2^{531520400014340} is an apocalyptic number.

It is an amenable number.

531520400014340 is an abundant number, since it is smaller than the sum of its proper divisors (686391459633724).

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

531520400014340 is a wasteful number, since it uses less digits than its factorization.

531520400014340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489966788 (or 489966786 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 531520400014340 its reverse (43410004025135), we get a palindrome (574930404039475).

The spelling of 531520400014340 in words is "five hundred thirty-one trillion, five hundred twenty billion, four hundred million, fourteen thousand, three hundred forty".