354438117138 has 24 divisors (see below), whose sum is σ = 824611130352. Its totient is φ = 101268033384.

The previous prime is 354438117109. The next prime is 354438117139. The reversal of 354438117138 is 831711834453.

It is a super-2 number, since 2×354438117138² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (354438117139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 602785620 + ... + 602786207.

It is an arithmetic number, because the mean of its divisors is an integer number (34358797098).

Almost surely, 2^354438117138 is an apocalyptic number.

354438117138 is an abundant number, since it is smaller than the sum of its proper divisors (470173013214).

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

354438117138 is a wasteful number, since it uses less digits than its factorization.

354438117138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205571846 (or 1205571839 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The spelling of 354438117138 in words is "three hundred fifty-four billion, four hundred thirty-eight million, one hundred seventeen thousand, one hundred thirty-eight".