43139137252608 has 216 divisors, whose sum is σ = 130988221553280. Its totient is φ = 13616528302080.

The previous prime is 43139137252591. The next prime is 43139137252691. The reversal of 43139137252608 is 80625273193134.

43139137252608 is a `hidden beast` number, since 4 + 3 + 1 + 3 + 9 + 1 + 3 + 7 + 25 + 2 + 608 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94020873 + ... + 94478583.

It is a 1-persistent number, because it is pandigital, but 2⋅43139137252608 = 86278274505216 is not.

Almost surely, 2^{43139137252608} is an apocalyptic number.

43139137252608 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43139137252608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65494110776640).

43139137252608 is an abundant number, since it is smaller than the sum of its proper divisors (87849084300672).

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

43139137252608 is a wasteful number, since it uses less digits than its factorization.

43139137252608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459905 (or 459888 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

It can be divided in two parts, 4313 and 9137252608, that added together give a square (9137256921 = 95589²).

The spelling of 43139137252608 in words is "forty-three trillion, one hundred thirty-nine billion, one hundred thirty-seven million, two hundred fifty-two thousand, six hundred eight".