28154170368 has 66 divisors (see below), whose sum is σ = 81294582564. Its totient is φ = 9384720384.

The previous prime is 28154170367. The next prime is 28154170393. The reversal of 28154170368 is 86307145182.

28154170368 is a `hidden beast` number, since 2 + 8 + 1 + 541 + 70 + 36 + 8 = 666.

It is a super-2 number, since 2×28154170368² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28154170367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1518246 + ... + 1536677.

Almost surely, 2^28154170368 is an apocalyptic number.

It is an amenable number.

28154170368 is an abundant number, since it is smaller than the sum of its proper divisors (53140412196).

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

28154170368 is a wasteful number, since it uses less digits than its factorization.

28154170368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054949 (or 3054928 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 28154170368 in words is "twenty-eight billion, one hundred fifty-four million, one hundred seventy thousand, three hundred sixty-eight".