531210327346540 has 48 divisors (see below), whose sum is σ = 1164208455813312. Its totient is φ = 203216888641536.

The previous prime is 531210327346507. The next prime is 531210327346663. The reversal of 531210327346540 is 45643723012135.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 78573609 + ... + 85066048.

It is an arithmetic number, because the mean of its divisors is an integer number (24254342829444).

Almost surely, 2^{531210327346540} is an apocalyptic number.

It is an amenable number.

531210327346540 is an abundant number, since it is smaller than the sum of its proper divisors (632998128466772).

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

531210327346540 is a wasteful number, since it uses less digits than its factorization.

531210327346540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163646746 (or 163646744 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 531210327346540 in words is "five hundred thirty-one trillion, two hundred ten billion, three hundred twenty-seven million, three hundred forty-six thousand, five hundred forty".