2447378384868 has 48 divisors (see below), whose sum is σ = 6718293610560. Its totient is φ = 767804982912.

The previous prime is 2447378384839. The next prime is 2447378384881. The reversal of 2447378384868 is 8684838737442.

2447378384868 is a `hidden beast` number, since 2 + 4 + 4 + 73 + 78 + 3 + 8 + 486 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2447378384796 and 2447378384805.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666495546 + ... + 666499217.

It is an arithmetic number, because the mean of its divisors is an integer number (139964450220).

Almost surely, 2^{2447378384868} is an apocalyptic number.

It is an amenable number.

2447378384868 is an abundant number, since it is smaller than the sum of its proper divisors (4270915225692).

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

2447378384868 is a wasteful number, since it uses less digits than its factorization.

2447378384868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332994793 (or 1332994785 counting only the distinct ones).

The product of its digits is 1387266048, while the sum is 72.

The spelling of 2447378384868 in words is "two trillion, four hundred forty-seven billion, three hundred seventy-eight million, three hundred eighty-four thousand, eight hundred sixty-eight".