631977494603 has 16 divisors (see below), whose sum is σ = 777837505536. Its totient is φ = 500013902880.

The previous prime is 631977494587. The next prime is 631977494609. The reversal of 631977494603 is 306494779136.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 631977494603 - 2⁴ = 631977494587 is a prime.

It is a super-3 number, since 3×631977494603³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (631977494609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6143450 + ... + 6245472.

It is an arithmetic number, because the mean of its divisors is an integer number (48614844096).

Almost surely, 2^631977494603 is an apocalyptic number.

631977494603 is a deficient number, since it is larger than the sum of its proper divisors (145860010933).

631977494603 is a wasteful number, since it uses less digits than its factorization.

631977494603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170114.

The product of its (nonzero) digits is 20575296, while the sum is 59.

The spelling of 631977494603 in words is "six hundred thirty-one billion, nine hundred seventy-seven million, four hundred ninety-four thousand, six hundred three".