634736002050061 has 2 divisors, whose sum is σ = 634736002050062. Its totient is φ = 634736002050060.

The previous prime is 634736002050043. The next prime is 634736002050109. The reversal of 634736002050061 is 160050200637436.

634736002050061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354112193701161 + 280623808348900 = 18817869^2 + 16751830^2 .

It is a cyclic number.

It is not a de Polignac number, because 634736002050061 - 2⁴¹ = 632536978794509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634736002050001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317368001025030 + 317368001025031.

It is an arithmetic number, because the mean of its divisors is an integer number (317368001025031).

Almost surely, 2^{634736002050061} is an apocalyptic number.

It is an amenable number.

634736002050061 is a deficient number, since it is larger than the sum of its proper divisors (1).

634736002050061 is an equidigital number, since it uses as much as digits as its factorization.

634736002050061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 43.

Adding to 634736002050061 its reverse (160050200637436), we get a palindrome (794786202687497).

The spelling of 634736002050061 in words is "six hundred thirty-four trillion, seven hundred thirty-six billion, two million, fifty thousand, sixty-one".