28253153181514 has 4 divisors (see below), whose sum is σ = 42379729772274. Its totient is φ = 14126576590756.

The previous prime is 28253153181479. The next prime is 28253153181581. The reversal of 28253153181514 is 41518135135282.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20595939975625 + 7657213205889 = 4538275^2 + 2767167^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7063288295377 + ... + 7063288295380.

Almost surely, 2^{28253153181514} is an apocalyptic number.

28253153181514 is a deficient number, since it is larger than the sum of its proper divisors (14126576590760).

28253153181514 is a wasteful number, since it uses less digits than its factorization.

28253153181514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14126576590759.

The product of its digits is 1152000, while the sum is 49.

The spelling of 28253153181514 in words is "twenty-eight trillion, two hundred fifty-three billion, one hundred fifty-three million, one hundred eighty-one thousand, five hundred fourteen".