78281419056 has 20 divisors (see below), whose sum is σ = 202226999352. Its totient is φ = 26093806336.

The previous prime is 78281419049. The next prime is 78281419061. The reversal of 78281419056 is 65091418287.

It is a super-2 number, since 2×78281419056² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815431401 + ... + 815431496.

Almost surely, 2^78281419056 is an apocalyptic number.

It is an amenable number.

78281419056 is an abundant number, since it is smaller than the sum of its proper divisors (123945580296).

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

78281419056 is a wasteful number, since it uses less digits than its factorization.

78281419056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630862908 (or 1630862902 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 78281419056 in words is "seventy-eight billion, two hundred eighty-one million, four hundred nineteen thousand, fifty-six".