28838243025 has 48 divisors (see below), whose sum is σ = 53702723520. Its totient is φ = 15169680000.

The previous prime is 28838243023. The next prime is 28838243039. The reversal of 28838243025 is 52034283882.

It is a happy number.

It is not a de Polignac number, because 28838243025 - 2¹ = 28838243023 is a prime.

It is a super-2 number, since 2×28838243025² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (28838243023) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 243351 + ... + 341900.

It is an arithmetic number, because the mean of its divisors is an integer number (1118806740).

Almost surely, 2^28838243025 is an apocalyptic number.

28838243025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28838243025 is a deficient number, since it is larger than the sum of its proper divisors (24864480495).

28838243025 is a wasteful number, since it uses less digits than its factorization.

28838243025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585343 (or 585332 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 28838243025 in words is "twenty-eight billion, eight hundred thirty-eight million, two hundred forty-three thousand, twenty-five".