238631805270 has 192 divisors, whose sum is σ = 665272258560. Its totient is φ = 61480944000.

The previous prime is 238631805193. The next prime is 238631805331. The reversal of 238631805270 is 72508136832.

238631805270 is a `hidden beast` number, since 2 + 3 + 8 + 631 + 8 + 0 + 5 + 2 + 7 + 0 = 666.

238631805270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 52804071 + ... + 52808589.

It is an arithmetic number, because the mean of its divisors is an integer number (3464959680).

Almost surely, 2^238631805270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238631805270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332636129280).

238631805270 is an abundant number, since it is smaller than the sum of its proper divisors (426640453290).

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

238631805270 is a wasteful number, since it uses less digits than its factorization.

238631805270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5273 (or 5261 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 238631805270 in words is "two hundred thirty-eight billion, six hundred thirty-one million, eight hundred five thousand, two hundred seventy".