9631540828479 has 16 divisors (see below), whose sum is σ = 13084745565024. Its totient is φ = 6299688844800.

The previous prime is 9631540828477. The next prime is 9631540828487. The reversal of 9631540828479 is 9748280451369.

It is a happy number.

It is not a de Polignac number, because 9631540828479 - 2¹ = 9631540828477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9631540828477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4581939 + ... + 6344859.

It is an arithmetic number, because the mean of its divisors is an integer number (817796597814).

It is a 1-persistent number, because it is pandigital, but 2⋅9631540828479 = 19263081656958 is not.

Almost surely, 2^{9631540828479} is an apocalyptic number.

9631540828479 is a deficient number, since it is larger than the sum of its proper divisors (3453204736545).

9631540828479 is a wasteful number, since it uses less digits than its factorization.

9631540828479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797338.

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 9631540828479 in words is "nine trillion, six hundred thirty-one billion, five hundred forty million, eight hundred twenty-eight thousand, four hundred seventy-nine".