158277828779 has 36 divisors (see below), whose sum is σ = 194840580600. Its totient is φ = 128181807936.

The previous prime is 158277828773. The next prime is 158277828781. The reversal of 158277828779 is 977828772851.

It is not a de Polignac number, because 158277828779 - 2⁴ = 158277828763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158277828773) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6692327 + ... + 6715935.

It is an arithmetic number, because the mean of its divisors is an integer number (5412238350).

Almost surely, 2^158277828779 is an apocalyptic number.

158277828779 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

158277828779 is a deficient number, since it is larger than the sum of its proper divisors (36562751821).

158277828779 is a wasteful number, since it uses less digits than its factorization.

158277828779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24040 (or 24014 counting only the distinct ones).

The product of its digits is 221276160, while the sum is 71.

The spelling of 158277828779 in words is "one hundred fifty-eight billion, two hundred seventy-seven million, eight hundred twenty-eight thousand, seven hundred seventy-nine".