634061442612 has 96 divisors (see below), whose sum is σ = 1603851096960. Its totient is φ = 193803655680.

The previous prime is 634061442593. The next prime is 634061442629. The reversal of 634061442612 is 216244160436.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 33968562 + ... + 33987222.

It is an arithmetic number, because the mean of its divisors is an integer number (16706782260).

Almost surely, 2^634061442612 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 634061442612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801925548480).

634061442612 is an abundant number, since it is smaller than the sum of its proper divisors (969789654348).

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

634061442612 is a wasteful number, since it uses less digits than its factorization.

634061442612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20113 (or 20111 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 634061442612 in words is "six hundred thirty-four billion, sixty-one million, four hundred forty-two thousand, six hundred twelve".