631346245017427 has 2 divisors, whose sum is σ = 631346245017428. Its totient is φ = 631346245017426.

The previous prime is 631346245017407. The next prime is 631346245017431. The reversal of 631346245017427 is 724710542643136.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 631346245017427 - 2²⁷ = 631346110799699 is a prime.

It is not a weakly prime, because it can be changed into another prime (631346245017407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315673122508713 + 315673122508714.

It is an arithmetic number, because the mean of its divisors is an integer number (315673122508714).

Almost surely, 2^{631346245017427} is an apocalyptic number.

631346245017427 is a deficient number, since it is larger than the sum of its proper divisors (1).

631346245017427 is an equidigital number, since it uses as much as digits as its factorization.

631346245017427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 55.

The spelling of 631346245017427 in words is "six hundred thirty-one trillion, three hundred forty-six billion, two hundred forty-five million, seventeen thousand, four hundred twenty-seven".