78228556454576 has 20 divisors (see below), whose sum is σ = 165346721597544. Its totient is φ = 35558434752000.

The previous prime is 78228556454557. The next prime is 78228556454623. The reversal of 78228556454576 is 67545465582287.

78228556454576 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×78228556454576² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222240217025 + ... + 222240217376.

Almost surely, 2^{78228556454576} is an apocalyptic number.

It is an amenable number.

78228556454576 is an abundant number, since it is smaller than the sum of its proper divisors (87118165142968).

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

78228556454576 is a wasteful number, since it uses less digits than its factorization.

78228556454576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444480434420 (or 444480434414 counting only the distinct ones).

The product of its digits is 4515840000, while the sum is 74.

The spelling of 78228556454576 in words is "seventy-eight trillion, two hundred twenty-eight billion, five hundred fifty-six million, four hundred fifty-four thousand, five hundred seventy-six".