531416797965 has 48 divisors (see below), whose sum is σ = 978200681328. Its totient is φ = 265958719488.

The previous prime is 531416797963. The next prime is 531416797973. The reversal of 531416797965 is 569797614135.

It is a happy number.

531416797965 is a `hidden beast` number, since 531 + 4 + 1 + 6 + 7 + 9 + 7 + 96 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1365819849 + 530050978116 = 36957^2 + 728046^2 .

It is not a de Polignac number, because 531416797965 - 2¹ = 531416797963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531416797963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 772852 + ... + 1288461.

It is an arithmetic number, because the mean of its divisors is an integer number (20379180861).

Almost surely, 2^531416797965 is an apocalyptic number.

It is an amenable number.

531416797965 is a deficient number, since it is larger than the sum of its proper divisors (446783883363).

531416797965 is a wasteful number, since it uses less digits than its factorization.

531416797965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061678 (or 2061675 counting only the distinct ones).

The product of its digits is 42865200, while the sum is 63.

The spelling of 531416797965 in words is "five hundred thirty-one billion, four hundred sixteen million, seven hundred ninety-seven thousand, nine hundred sixty-five".