78245382311822 has 16 divisors (see below), whose sum is σ = 128038037479344. Its totient is φ = 35566044216000.

The previous prime is 78245382311813. The next prime is 78245382311843. The reversal of 78245382311822 is 22811328354287.

It is a super-2 number, since 2×78245382311822² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32045072 + ... + 34400252.

It is an arithmetic number, because the mean of its divisors is an integer number (8002377342459).

Almost surely, 2^{78245382311822} is an apocalyptic number.

78245382311822 is a deficient number, since it is larger than the sum of its proper divisors (49792655167522).

78245382311822 is a wasteful number, since it uses less digits than its factorization.

78245382311822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865315.

The product of its digits is 10321920, while the sum is 56.

The spelling of 78245382311822 in words is "seventy-eight trillion, two hundred forty-five billion, three hundred eighty-two million, three hundred eleven thousand, eight hundred twenty-two".