28838014425 has 144 divisors (see below), whose sum is σ = 57919650048. Its totient is φ = 13595980800.

The previous prime is 28838014421. The next prime is 28838014459. The reversal of 28838014425 is 52441083882.

It is not a de Polignac number, because 28838014425 - 2² = 28838014421 is a prime.

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 (28838014421) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 20123509 + ... + 20124941.

It is an arithmetic number, because the mean of its divisors is an integer number (402219792).

Almost surely, 2^28838014425 is an apocalyptic number.

28838014425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28838014425 is an abundant number, since it is smaller than the sum of its proper divisors (29081635623).

28838014425 is a wasteful number, since it uses less digits than its factorization.

28838014425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 28838014425 in words is "twenty-eight billion, eight hundred thirty-eight million, fourteen thousand, four hundred twenty-five".