158135878436 has 24 divisors (see below), whose sum is σ = 279720561120. Its totient is φ = 78216475392.

The previous prime is 158135878429. The next prime is 158135878451. The reversal of 158135878436 is 634878531851.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751931 + ... + 938973.

It is an arithmetic number, because the mean of its divisors is an integer number (11655023380).

Almost surely, 2^158135878436 is an apocalyptic number.

It is an amenable number.

158135878436 is a deficient number, since it is larger than the sum of its proper divisors (121584682684).

158135878436 is a wasteful number, since it uses less digits than its factorization.

158135878436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189323 (or 189321 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 59.

The spelling of 158135878436 in words is "one hundred fifty-eight billion, one hundred thirty-five million, eight hundred seventy-eight thousand, four hundred thirty-six".