253838430108 has 18 divisors (see below), whose sum is σ = 641647142864. Its totient is φ = 84612810024.

The previous prime is 253838430037. The next prime is 253838430121. The reversal of 253838430108 is 801034838352.

253838430108 is a `hidden beast` number, since 2 + 538 + 3 + 8 + 4 + 3 + 0 + 108 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3525533716 + ... + 3525533787.

Almost surely, 2^253838430108 is an apocalyptic number.

It is an amenable number.

253838430108 is an abundant number, since it is smaller than the sum of its proper divisors (387808712756).

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

253838430108 is a wasteful number, since it uses less digits than its factorization.

253838430108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051067513 (or 7051067508 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 253838430108 in words is "two hundred fifty-three billion, eight hundred thirty-eight million, four hundred thirty thousand, one hundred eight".