634610412637 has 2 divisors, whose sum is σ = 634610412638. Its totient is φ = 634610412636.

The previous prime is 634610412571. The next prime is 634610412659. The reversal of 634610412637 is 736214016436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 589894658116 + 44715754521 = 768046^2 + 211461^2 .

It is a cyclic number.

It is not a de Polignac number, because 634610412637 - 2⁷ = 634610412509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 634610412593 and 634610412602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634610112637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317305206318 + 317305206319.

It is an arithmetic number, because the mean of its divisors is an integer number (317305206319).

Almost surely, 2^634610412637 is an apocalyptic number.

It is an amenable number.

634610412637 is a deficient number, since it is larger than the sum of its proper divisors (1).

634610412637 is an equidigital number, since it uses as much as digits as its factorization.

634610412637 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 634610412637 in words is "six hundred thirty-four billion, six hundred ten million, four hundred twelve thousand, six hundred thirty-seven".