238864180053436 has 144 divisors (see below), whose sum is σ = 502526359695360. Its totient is φ = 98953417704960.

The previous prime is 238864180053431. The next prime is 238864180053437. The reversal of 238864180053436 is 634350081468832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238864180053431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30316556545 + ... + 30316564423.

Almost surely, 2^{238864180053436} 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 238864180053436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251263179847680).

238864180053436 is an abundant number, since it is smaller than the sum of its proper divisors (263662179641924).

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

238864180053436 is a wasteful number, since it uses less digits than its factorization.

238864180053436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13072 (or 13063 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 61.

The spelling of 238864180053436 in words is "two hundred thirty-eight trillion, eight hundred sixty-four billion, one hundred eighty million, fifty-three thousand, four hundred thirty-six".