634051626386 has 4 divisors (see below), whose sum is σ = 951077439582. Its totient is φ = 317025813192.

The previous prime is 634051626379. The next prime is 634051626431. The reversal of 634051626386 is 683626150436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 536748182161 + 97303444225 = 732631^2 + 311935^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158512906595 + ... + 158512906598.

Almost surely, 2^634051626386 is an apocalyptic number.

634051626386 is a deficient number, since it is larger than the sum of its proper divisors (317025813196).

634051626386 is a wasteful number, since it uses less digits than its factorization.

634051626386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317025813195.

The product of its (nonzero) digits is 3732480, while the sum is 50.

The spelling of 634051626386 in words is "six hundred thirty-four billion, fifty-one million, six hundred twenty-six thousand, three hundred eighty-six".