631614846593 has 2 divisors, whose sum is σ = 631614846594. Its totient is φ = 631614846592.

The previous prime is 631614846451. The next prime is 631614846617. The reversal of 631614846593 is 395648416136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412339926769 + 219274919824 = 642137^2 + 468268^2 .

It is a cyclic number.

It is not a de Polignac number, because 631614846593 - 2²² = 631610652289 is a prime.

It is not a weakly prime, because it can be changed into another prime (631614845593) 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 as a sum of consecutive naturals, namely, 315807423296 + 315807423297.

It is an arithmetic number, because the mean of its divisors is an integer number (315807423297).

Almost surely, 2^631614846593 is an apocalyptic number.

It is an amenable number.

631614846593 is a deficient number, since it is larger than the sum of its proper divisors (1).

631614846593 is an equidigital number, since it uses as much as digits as its factorization.

631614846593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11197440, while the sum is 56.

The spelling of 631614846593 in words is "six hundred thirty-one billion, six hundred fourteen million, eight hundred forty-six thousand, five hundred ninety-three".