634625085284 has 12 divisors (see below), whose sum is σ = 1140609950844. Its totient is φ = 308736527904.

The previous prime is 634625085257. The next prime is 634625085323. The reversal of 634625085284 is 482580526436.

It can be written as a sum of positive squares in 2 ways, for example, as 373577664100 + 261047421184 = 611210^2 + 510928^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2144003519 + ... + 2144003814.

It is an arithmetic number, because the mean of its divisors is an integer number (95050829237).

Almost surely, 2^634625085284 is an apocalyptic number.

It is an amenable number.

634625085284 is a deficient number, since it is larger than the sum of its proper divisors (505984865560).

634625085284 is a wasteful number, since it uses less digits than its factorization.

634625085284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288007374 (or 4288007372 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 53.

The spelling of 634625085284 in words is "six hundred thirty-four billion, six hundred twenty-five million, eighty-five thousand, two hundred eighty-four".