634432232631652 has 96 divisors (see below), whose sum is σ = 1438712098145280. Its totient is φ = 237721054262400.

The previous prime is 634432232631647. The next prime is 634432232631713. The reversal of 634432232631652 is 256136232234436.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 634432232631652.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20478243 + ... + 41087989.

It is an arithmetic number, because the mean of its divisors is an integer number (14986584355680).

Almost surely, 2^{634432232631652} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634432232631652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719356049072640).

634432232631652 is an abundant number, since it is smaller than the sum of its proper divisors (804279865513628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634432232631652 is a wasteful number, since it uses less digits than its factorization.

634432232631652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20614241 (or 20614239 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 52.

The spelling of 634432232631652 in words is "six hundred thirty-four trillion, four hundred thirty-two billion, two hundred thirty-two million, six hundred thirty-one thousand, six hundred fifty-two".