4138854068532 has 12 divisors (see below), whose sum is σ = 9657326159936. Its totient is φ = 1379618022840.

The previous prime is 4138854068509. The next prime is 4138854068551. The reversal of 4138854068532 is 2358604588314.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×4138854068532² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172452252844 + ... + 172452252867.

Almost surely, 2^{4138854068532} is an apocalyptic number.

It is an amenable number.

4138854068532 is an abundant number, since it is smaller than the sum of its proper divisors (5518472091404).

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

4138854068532 is a wasteful number, since it uses less digits than its factorization.

4138854068532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344904505718 (or 344904505716 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 57.

The spelling of 4138854068532 in words is "four trillion, one hundred thirty-eight billion, eight hundred fifty-four million, sixty-eight thousand, five hundred thirty-two".