378855517475 has 48 divisors (see below), whose sum is σ = 525984834816. Its totient is φ = 269320704000.

The previous prime is 378855517331. The next prime is 378855517489. The reversal of 378855517475 is 574715558873.

It is not a de Polignac number, because 378855517475 - 2¹⁶ = 378855451939 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189497 + ... + 890853.

It is an arithmetic number, because the mean of its divisors is an integer number (10958017392).

Almost surely, 2^378855517475 is an apocalyptic number.

378855517475 is a deficient number, since it is larger than the sum of its proper divisors (147129317341).

378855517475 is a wasteful number, since it uses less digits than its factorization.

378855517475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701456 (or 701451 counting only the distinct ones).

The product of its digits is 164640000, while the sum is 65.

The spelling of 378855517475 in words is "three hundred seventy-eight billion, eight hundred fifty-five million, five hundred seventeen thousand, four hundred seventy-five".