28373257152 has 56 divisors (see below), whose sum is σ = 83412126800. Its totient is φ = 9457751808.

The previous prime is 28373257111. The next prime is 28373257169. The reversal of 28373257152 is 25175237382.

28373257152 is a `hidden beast` number, since 2 + 8 + 3 + 73 + 2 + 571 + 5 + 2 = 666.

It is a super-2 number, since 2×28373257152² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28373257098 and 28373257107.

It is a congruent number.

It is an unprimeable number.

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, 8208127 + ... + 8211582.

Almost surely, 2^28373257152 is an apocalyptic number.

It is an amenable number.

28373257152 is an abundant number, since it is smaller than the sum of its proper divisors (55038869648).

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

28373257152 is a wasteful number, since it uses less digits than its factorization.

28373257152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16419730 (or 16419714 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The spelling of 28373257152 in words is "twenty-eight billion, three hundred seventy-three million, two hundred fifty-seven thousand, one hundred fifty-two".