631614846451 has 2 divisors, whose sum is σ = 631614846452. Its totient is φ = 631614846450.

The previous prime is 631614846433. The next prime is 631614846593. The reversal of 631614846451 is 154648416136.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-631614846451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 631614846395 and 631614846404.

It is not a weakly prime, because it can be changed into another prime (631614843451) 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 as a sum of consecutive naturals, namely, 315807423225 + 315807423226.

It is an arithmetic number, because the mean of its divisors is an integer number (315807423226).

Almost surely, 2^631614846451 is an apocalyptic number.

631614846451 is a deficient number, since it is larger than the sum of its proper divisors (1).

631614846451 is an equidigital number, since it uses as much as digits as its factorization.

631614846451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1658880, while the sum is 49.

The spelling of 631614846451 in words is "six hundred thirty-one billion, six hundred fourteen million, eight hundred forty-six thousand, four hundred fifty-one".