634900206427 has 2 divisors, whose sum is σ = 634900206428. Its totient is φ = 634900206426.

The previous prime is 634900206419. The next prime is 634900206431. The reversal of 634900206427 is 724602009436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634900206427 - 2³ = 634900206419 is a prime.

It is not a weakly prime, because it can be changed into another prime (634900206467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317450103213 + 317450103214.

It is an arithmetic number, because the mean of its divisors is an integer number (317450103214).

Almost surely, 2^634900206427 is an apocalyptic number.

634900206427 is a deficient number, since it is larger than the sum of its proper divisors (1).

634900206427 is an equidigital number, since it uses as much as digits as its factorization.

634900206427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 634900206427 in words is "six hundred thirty-four billion, nine hundred million, two hundred six thousand, four hundred twenty-seven".