631013626653 has 8 divisors (see below), whose sum is σ = 845579400000. Its totient is φ = 418561802208.

The previous prime is 631013626651. The next prime is 631013626717. The reversal of 631013626653 is 356626310136.

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

It is not a de Polignac number, because 631013626653 - 2¹ = 631013626651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631013626651) 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 7 ways as a sum of consecutive naturals, for example, 528486528 + ... + 528487721.

It is an arithmetic number, because the mean of its divisors is an integer number (105697425000).

Almost surely, 2^631013626653 is an apocalyptic number.

It is an amenable number.

631013626653 is a deficient number, since it is larger than the sum of its proper divisors (214565773347).

631013626653 is a wasteful number, since it uses less digits than its factorization.

631013626653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056974451.

The product of its (nonzero) digits is 349920, while the sum is 42.

Adding to 631013626653 its reverse (356626310136), we get a palindrome (987639936789).

The spelling of 631013626653 in words is "six hundred thirty-one billion, thirteen million, six hundred twenty-six thousand, six hundred fifty-three".