378847643247 has 6 divisors (see below), whose sum is σ = 547224373592. Its totient is φ = 252565095492.

The previous prime is 378847643233. The next prime is 378847643257. The reversal of 378847643247 is 742346748873.

378847643247 is a `hidden beast` number, since 3 + 7 + 88 + 476 + 43 + 2 + 47 = 666.

It is not a de Polignac number, because 378847643247 - 2¹⁴ = 378847626863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378847643257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21047091283 + ... + 21047091300.

Almost surely, 2^378847643247 is an apocalyptic number.

378847643247 is a deficient number, since it is larger than the sum of its proper divisors (168376730345).

378847643247 is a wasteful number, since it uses less digits than its factorization.

378847643247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42094182589 (or 42094182586 counting only the distinct ones).

The product of its digits is 151732224, while the sum is 63.

The spelling of 378847643247 in words is "three hundred seventy-eight billion, eight hundred forty-seven million, six hundred forty-three thousand, two hundred forty-seven".