28481154343248 has 40 divisors (see below), whose sum is σ = 73576512739296. Its totient is φ = 9493692649600.

The previous prime is 28481154343237. The next prime is 28481154343277. The reversal of 28481154343248 is 84234345118482.

It is a super-2 number, since 2×28481154343248² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28111243 + ... + 29106773.

Almost surely, 2^{28481154343248} is an apocalyptic number.

It is an amenable number.

28481154343248 is an abundant number, since it is smaller than the sum of its proper divisors (45095358396048).

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

28481154343248 is a wasteful number, since it uses less digits than its factorization.

28481154343248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591563 (or 1591557 counting only the distinct ones).

The product of its digits is 23592960, while the sum is 57.

The spelling of 28481154343248 in words is "twenty-eight trillion, four hundred eighty-one billion, one hundred fifty-four million, three hundred forty-three thousand, two hundred forty-eight".