78228319058 has 6 divisors (see below), whose sum is σ = 117343071909. Its totient is φ = 39113961756.

The previous prime is 78228319027. The next prime is 78228319111. The reversal of 78228319058 is 85091382287.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64194836689 + 14033482369 = 253367^2 + 118463^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=197773.

It is a super-2 number, since 2×78228319058² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 296660 + ... + 494432.

Almost surely, 2^78228319058 is an apocalyptic number.

78228319058 is a deficient number, since it is larger than the sum of its proper divisors (39114752851).

78228319058 is an frugal number, since it uses more digits than its factorization.

78228319058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395548 (or 197775 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 78228319058 in words is "seventy-eight billion, two hundred twenty-eight million, three hundred nineteen thousand, fifty-eight".