634061355641 has 8 divisors (see below), whose sum is σ = 735457095360. Its totient is φ = 535369502448.

The previous prime is 634061355619. The next prime is 634061355673. The reversal of 634061355641 is 146553160436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 634061355641 - 2²² = 634057161337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634061355592 and 634061355601.

It is not an unprimeable number, because it can be changed into a prime (634061355601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675971126 + ... + 675972063.

It is an arithmetic number, because the mean of its divisors is an integer number (91932136920).

Almost surely, 2^634061355641 is an apocalyptic number.

It is an amenable number.

634061355641 is a deficient number, since it is larger than the sum of its proper divisors (101395739719).

634061355641 is a wasteful number, since it uses less digits than its factorization.

634061355641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351943263.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 634061355641 in words is "six hundred thirty-four billion, sixty-one million, three hundred fifty-five thousand, six hundred forty-one".