378515845387 has 8 divisors (see below), whose sum is σ = 394996861440. Its totient is φ = 362036813160.

The previous prime is 378515845361. The next prime is 378515845417. The reversal of 378515845387 is 783548515873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 378515845387 - 2¹⁹ = 378515321099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378515845327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99289 + ... + 875722.

It is an arithmetic number, because the mean of its divisors is an integer number (49374607680).

Almost surely, 2^378515845387 is an apocalyptic number.

378515845387 is a deficient number, since it is larger than the sum of its proper divisors (16481016053).

378515845387 is a wasteful number, since it uses less digits than its factorization.

378515845387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991913.

The product of its digits is 112896000, while the sum is 64.

The spelling of 378515845387 in words is "three hundred seventy-eight billion, five hundred fifteen million, eight hundred forty-five thousand, three hundred eighty-seven".