1325834438478 has 64 divisors (see below), whose sum is σ = 3018768459264. Its totient is φ = 384265728000.

The previous prime is 1325834438449. The next prime is 1325834438483. The reversal of 1325834438478 is 8748344385231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20735838 + ... + 20799678.

It is an arithmetic number, because the mean of its divisors is an integer number (47168257176).

Almost surely, 2^{1325834438478} is an apocalyptic number.

1325834438478 is an abundant number, since it is smaller than the sum of its proper divisors (1692934020786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1325834438478 is a wasteful number, since it uses less digits than its factorization.

1325834438478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77561.

The product of its digits is 61931520, while the sum is 60.

The spelling of 1325834438478 in words is "one trillion, three hundred twenty-five billion, eight hundred thirty-four million, four hundred thirty-eight thousand, four hundred seventy-eight".