77845163126 has 8 divisors (see below), whose sum is σ = 117033731760. Its totient is φ = 38833919208.

The previous prime is 77845163027. The next prime is 77845163129. The reversal of 77845163126 is 62136154877.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×77845163126² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77845163129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44330081 + ... + 44331836.

It is an arithmetic number, because the mean of its divisors is an integer number (14629216470).

Almost surely, 2^77845163126 is an apocalyptic number.

77845163126 is a deficient number, since it is larger than the sum of its proper divisors (39188568634).

77845163126 is a wasteful number, since it uses less digits than its factorization.

77845163126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88662358.

The product of its digits is 1693440, while the sum is 50.

The spelling of 77845163126 in words is "seventy-seven billion, eight hundred forty-five million, one hundred sixty-three thousand, one hundred twenty-six".