878624478394 has 32 divisors (see below), whose sum is σ = 1488045170304. Its totient is φ = 386049343680.

The previous prime is 878624478383. The next prime is 878624478443. The reversal of 878624478394 is 493874426878.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3355509 + ... + 3607864.

It is an arithmetic number, because the mean of its divisors is an integer number (46501411572).

Almost surely, 2^878624478394 is an apocalyptic number.

878624478394 is a deficient number, since it is larger than the sum of its proper divisors (609420691910).

878624478394 is a wasteful number, since it uses less digits than its factorization.

878624478394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6963622.

The product of its digits is 520224768, while the sum is 70.

The spelling of 878624478394 in words is "eight hundred seventy-eight billion, six hundred twenty-four million, four hundred seventy-eight thousand, three hundred ninety-four".