28465481949472 has 24 divisors (see below), whose sum is σ = 56043043257600. Its totient is φ = 14232328106304.

The previous prime is 28465481949449. The next prime is 28465481949497. The reversal of 28465481949472 is 27494918456482.

It is a super-2 number, since 2×28465481949472² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28465481949395 and 28465481949404.

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 3 ways as a sum of consecutive naturals, for example, 11780272 + ... + 13989487.

It is an arithmetic number, because the mean of its divisors is an integer number (2335126802400).

Almost surely, 2^{28465481949472} is an apocalyptic number.

It is an amenable number.

28465481949472 is a deficient number, since it is larger than the sum of its proper divisors (27577561308128).

28465481949472 is a wasteful number, since it uses less digits than its factorization.

28465481949472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25804288 (or 25804280 counting only the distinct ones).

The product of its digits is 1114767360, while the sum is 73.

The spelling of 28465481949472 in words is "twenty-eight trillion, four hundred sixty-five billion, four hundred eighty-one million, nine hundred forty-nine thousand, four hundred seventy-two".