634281101225 has 24 divisors (see below), whose sum is σ = 795376155168. Its totient is φ = 501713856000.

The previous prime is 634281101197. The next prime is 634281101249. The reversal of 634281101225 is 522101182436.

634281101225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 634281101225 - 2¹² = 634281097129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2424242 + ... + 2673108.

It is an arithmetic number, because the mean of its divisors is an integer number (33140673132).

Almost surely, 2^634281101225 is an apocalyptic number.

It is an amenable number.

634281101225 is a deficient number, since it is larger than the sum of its proper divisors (161095053943).

634281101225 is a wasteful number, since it uses less digits than its factorization.

634281101225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250025 (or 250020 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 634281101225 in words is "six hundred thirty-four billion, two hundred eighty-one million, one hundred one thousand, two hundred twenty-five".