325281781545 has 96 divisors (see below), whose sum is σ = 629153049600. Its totient is φ = 142936174080.

The previous prime is 325281781529. The next prime is 325281781579. The reversal of 325281781545 is 545187182523.

325281781545 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 325281781545 - 2⁴ = 325281781529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3347059 + ... + 3442871.

It is an arithmetic number, because the mean of its divisors is an integer number (6553677600).

Almost surely, 2^325281781545 is an apocalyptic number.

325281781545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

325281781545 is a deficient number, since it is larger than the sum of its proper divisors (303871268055).

325281781545 is a wasteful number, since it uses less digits than its factorization.

325281781545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96015 (or 96008 counting only the distinct ones).

The product of its digits is 2688000, while the sum is 51.

The spelling of 325281781545 in words is "three hundred twenty-five billion, two hundred eighty-one million, seven hundred eighty-one thousand, five hundred forty-five".