158975851858 has 4 divisors (see below), whose sum is σ = 238463777790. Its totient is φ = 79487925928.

The previous prime is 158975851813. The next prime is 158975851891. The reversal of 158975851858 is 858158579851.

158975851858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 131005630809 + 27970221049 = 361947^2 + 167243^2 .

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 as a sum of consecutive naturals, namely, 39743962963 + ... + 39743962966.

Almost surely, 2^158975851858 is an apocalyptic number.

158975851858 is a deficient number, since it is larger than the sum of its proper divisors (79487925932).

158975851858 is an equidigital number, since it uses as much as digits as its factorization.

158975851858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79487925931.

The product of its digits is 161280000, while the sum is 70.

The spelling of 158975851858 in words is "one hundred fifty-eight billion, nine hundred seventy-five million, eight hundred fifty-one thousand, eight hundred fifty-eight".