531474165387331 has 4 divisors (see below), whose sum is σ = 531474212727792. Its totient is φ = 531474118046872.

The previous prime is 531474165387329. The next prime is 531474165387353. The reversal of 531474165387331 is 133783561474135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 531474165387331 - 2¹ = 531474165387329 is a prime.

It is a super-2 number, since 2×531474165387331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 531474165387331.

It is not an unprimeable number, because it can be changed into a prime (531474165387391) 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, 3784485 + ... + 32821801.

It is an arithmetic number, because the mean of its divisors is an integer number (132868553181948).

Almost surely, 2^{531474165387331} is an apocalyptic number.

531474165387331 is a deficient number, since it is larger than the sum of its proper divisors (47340461).

531474165387331 is a wasteful number, since it uses less digits than its factorization.

531474165387331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47340460.

The product of its digits is 76204800, while the sum is 61.

The spelling of 531474165387331 in words is "five hundred thirty-one trillion, four hundred seventy-four billion, one hundred sixty-five million, three hundred eighty-seven thousand, three hundred thirty-one".