378475378815 has 8 divisors (see below), whose sum is σ = 605560606128. Its totient is φ = 201853535360.

The previous prime is 378475378793. The next prime is 378475378847. The reversal of 378475378815 is 518873574873.

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

It is not a de Polignac number, because 378475378815 - 2⁸ = 378475378559 is a prime.

It is a super-3 number, since 3×378475378815³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12615845946 + ... + 12615845975.

It is an arithmetic number, because the mean of its divisors is an integer number (75695075766).

Almost surely, 2^378475378815 is an apocalyptic number.

378475378815 is a deficient number, since it is larger than the sum of its proper divisors (227085227313).

378475378815 is a wasteful number, since it uses less digits than its factorization.

378475378815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25231691929.

The product of its digits is 158054400, while the sum is 66.

The spelling of 378475378815 in words is "three hundred seventy-eight billion, four hundred seventy-five million, three hundred seventy-eight thousand, eight hundred fifteen".