78242744582211 has 16 divisors (see below), whose sum is σ = 113887269999360. Its totient is φ = 47386661236320.

The previous prime is 78242744582209. The next prime is 78242744582239. The reversal of 78242744582211 is 11228544724287.

It is not a de Polignac number, because 78242744582211 - 2¹ = 78242744582209 is a prime.

It is a super-2 number, since 2×78242744582211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78242744582711) 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 15 ways as a sum of consecutive naturals, for example, 829551255 + ... + 829645568.

It is an arithmetic number, because the mean of its divisors is an integer number (7117954374960).

Almost surely, 2^{78242744582211} is an apocalyptic number.

78242744582211 is a deficient number, since it is larger than the sum of its proper divisors (35644525417149).

78242744582211 is a wasteful number, since it uses less digits than its factorization.

78242744582211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659198266.

The product of its digits is 16056320, while the sum is 57.

The spelling of 78242744582211 in words is "seventy-eight trillion, two hundred forty-two billion, seven hundred forty-four million, five hundred eighty-two thousand, two hundred eleven".