78829212111 has 32 divisors (see below), whose sum is σ = 114255852480. Its totient is φ = 48054257664.

The previous prime is 78829212107. The next prime is 78829212181. The reversal of 78829212111 is 11121292887.

It is not a de Polignac number, because 78829212111 - 2² = 78829212107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78829212181) by changing a digit.

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, 10383505 + ... + 10391093.

It is an arithmetic number, because the mean of its divisors is an integer number (3570495390).

Almost surely, 2^78829212111 is an apocalyptic number.

78829212111 is a deficient number, since it is larger than the sum of its proper divisors (35426640369).

78829212111 is a wasteful number, since it uses less digits than its factorization.

78829212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10075.

The product of its digits is 32256, while the sum is 42.

The spelling of 78829212111 in words is "seventy-eight billion, eight hundred twenty-nine million, two hundred twelve thousand, one hundred eleven".