78822444855 has 64 divisors (see below), whose sum is σ = 161070529536. Its totient is φ = 31958400000.

The previous prime is 78822444823. The next prime is 78822444863. The reversal of 78822444855 is 55844422887.

It is not a de Polignac number, because 78822444855 - 2⁵ = 78822444823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78822444795 and 78822444804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 784896 + ... + 879605.

It is an arithmetic number, because the mean of its divisors is an integer number (2516727024).

Almost surely, 2^78822444855 is an apocalyptic number.

78822444855 is an abundant number, since it is smaller than the sum of its proper divisors (82248084681).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78822444855 is a wasteful number, since it uses less digits than its factorization.

78822444855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664568.

The product of its digits is 22937600, while the sum is 57.

The spelling of 78822444855 in words is "seventy-eight billion, eight hundred twenty-two million, four hundred forty-four thousand, eight hundred fifty-five".