158393012238 has 192 divisors, whose sum is σ = 388344108672. Its totient is φ = 46393712640.

The previous prime is 158393012191. The next prime is 158393012269. The reversal of 158393012238 is 832210393851.

158393012238 is a `hidden beast` number, since 1 + 583 + 9 + 30 + 1 + 2 + 2 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 158393012193 and 158393012202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 58815220 + ... + 58817912.

It is an arithmetic number, because the mean of its divisors is an integer number (2022625566).

Almost surely, 2^158393012238 is an apocalyptic number.

158393012238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 158393012238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194172054336).

158393012238 is an abundant number, since it is smaller than the sum of its proper divisors (229951096434).

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

158393012238 is a wasteful number, since it uses less digits than its factorization.

158393012238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939 (or 2936 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 158393012238 in words is "one hundred fifty-eight billion, three hundred ninety-three million, twelve thousand, two hundred thirty-eight".