634358089156 has 81 divisors (see below), whose sum is σ = 1252127296749. Its totient is φ = 280993204800.

The previous prime is 634358089153. The next prime is 634358089159. The reversal of 634358089156 is 651980853436.

The square root of 634358089156 is 796466.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (634358089153) and next prime (634358089159).

It can be written as a sum of positive squares in only one way, i.e., 30566927556 + 603791161600 = 174834^2 + 777040^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 634358089156.

It is not an unprimeable number, because it can be changed into a prime (634358089153) 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 26 ways as a sum of consecutive naturals, for example, 718411891 + ... + 718412773.

Almost surely, 2^634358089156 is an apocalyptic number.

634358089156 is the 796466-th square number.

It is an amenable number.

634358089156 is a deficient number, since it is larger than the sum of its proper divisors (617769207593).

634358089156 is an equidigital number, since it uses as much as digits as its factorization.

634358089156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874 (or 937 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 634358089156 in words is "six hundred thirty-four billion, three hundred fifty-eight million, eighty-nine thousand, one hundred fifty-six".