531400404202 has 8 divisors (see below), whose sum is σ = 843988877316. Its totient is φ = 250070778432.

The previous prime is 531400404193. The next prime is 531400404203. The reversal of 531400404202 is 202404004135.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 523175909481 + 8224494721 = 723309^2 + 90689^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (531400404203) 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, 7814711793 + ... + 7814711860.

Almost surely, 2^531400404202 is an apocalyptic number.

531400404202 is a deficient number, since it is larger than the sum of its proper divisors (312588473114).

531400404202 is a wasteful number, since it uses less digits than its factorization.

531400404202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15629423672.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 531400404202 its reverse (202404004135), we get a palindrome (733804408337).

The spelling of 531400404202 in words is "five hundred thirty-one billion, four hundred million, four hundred four thousand, two hundred two".