378705733571 has 48 divisors (see below), whose sum is σ = 449948278080. Its totient is φ = 317523360000.

The previous prime is 378705733561. The next prime is 378705733591. The reversal of 378705733571 is 175337507873.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-378705733571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378705733561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68840321 + ... + 68845821.

It is an arithmetic number, because the mean of its divisors is an integer number (9373922460).

Almost surely, 2^378705733571 is an apocalyptic number.

378705733571 is a deficient number, since it is larger than the sum of its proper divisors (71242544509).

378705733571 is a wasteful number, since it uses less digits than its factorization.

378705733571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6428 (or 6417 counting only the distinct ones).

The product of its (nonzero) digits is 12965400, while the sum is 56.

The spelling of 378705733571 in words is "three hundred seventy-eight billion, seven hundred five million, seven hundred thirty-three thousand, five hundred seventy-one".