32481557428 has 24 divisors (see below), whose sum is σ = 59183727624. Its totient is φ = 15584908800.

The previous prime is 32481557419. The next prime is 32481557429. The reversal of 32481557428 is 82475518423.

It can be written as a sum of positive squares in 4 ways, for example, as 2340430884 + 30141126544 = 48378^2 + 173612^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32481557429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1613425 + ... + 1633432.

It is an arithmetic number, because the mean of its divisors is an integer number (2465988651).

Almost surely, 2^32481557428 is an apocalyptic number.

It is an amenable number.

32481557428 is a deficient number, since it is larger than the sum of its proper divisors (26702170196).

32481557428 is a wasteful number, since it uses less digits than its factorization.

32481557428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246963 (or 3246961 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 49.

The spelling of 32481557428 in words is "thirty-two billion, four hundred eighty-one million, five hundred fifty-seven thousand, four hundred twenty-eight".