634725125039 has 2 divisors, whose sum is σ = 634725125040. Its totient is φ = 634725125038.

The previous prime is 634725124997. The next prime is 634725125057. The reversal of 634725125039 is 930521527436.

634725125039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634725125039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 634725124984 and 634725125002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634725125539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317362562519 + 317362562520.

It is an arithmetic number, because the mean of its divisors is an integer number (317362562520).

Almost surely, 2^634725125039 is an apocalyptic number.

634725125039 is a deficient number, since it is larger than the sum of its proper divisors (1).

634725125039 is an equidigital number, since it uses as much as digits as its factorization.

634725125039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1360800, while the sum is 47.

The spelling of 634725125039 in words is "six hundred thirty-four billion, seven hundred twenty-five million, one hundred twenty-five thousand, thirty-nine".