631463945453 has 6 divisors (see below), whose sum is σ = 694088469102. Its totient is φ = 574058132120.

The previous prime is 631463945401. The next prime is 631463945467. The reversal of 631463945453 is 354549364136.

It can be written as a sum of positive squares in only one way, i.e., 610768821289 + 20695124164 = 781517^2 + 143858^2 .

It is not a de Polignac number, because 631463945453 - 2²⁶ = 631396836589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 631463945395 and 631463945404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631433945453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2609355026 + ... + 2609355267.

It is an arithmetic number, because the mean of its divisors is an integer number (115681411517).

Almost surely, 2^631463945453 is an apocalyptic number.

It is an amenable number.

631463945453 is a deficient number, since it is larger than the sum of its proper divisors (62624523649).

631463945453 is a wasteful number, since it uses less digits than its factorization.

631463945453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218710315 (or 5218710304 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 53.

The spelling of 631463945453 in words is "six hundred thirty-one billion, four hundred sixty-three million, nine hundred forty-five thousand, four hundred fifty-three".