157158729786 has 64 divisors (see below), whose sum is σ = 331948108800. Its totient is φ = 49466238336.

The previous prime is 157158729779. The next prime is 157158729797. The reversal of 157158729786 is 687927851751.

157158729786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 31 ways as a sum of consecutive naturals, for example, 54135211 + ... + 54138113.

It is an arithmetic number, because the mean of its divisors is an integer number (5186689200).

Almost surely, 2^157158729786 is an apocalyptic number.

157158729786 is an abundant number, since it is smaller than the sum of its proper divisors (174789379014).

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

157158729786 is a wasteful number, since it uses less digits than its factorization.

157158729786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323.

The product of its digits is 59270400, while the sum is 66.

The spelling of 157158729786 in words is "one hundred fifty-seven billion, one hundred fifty-eight million, seven hundred twenty-nine thousand, seven hundred eighty-six".