28975409841 has 32 divisors (see below), whose sum is σ = 46842382080. Its totient is φ = 15552700416.

The previous prime is 28975409831. The next prime is 28975409851. The reversal of 28975409841 is 14890457982.

It is an interprime number because it is at equal distance from previous prime (28975409831) and next prime (28975409851).

It is not a de Polignac number, because 28975409841 - 2¹⁴ = 28975393457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28975409831) 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 31 ways as a sum of consecutive naturals, for example, 101985 + ... + 261441.

It is an arithmetic number, because the mean of its divisors is an integer number (1463824440).

Almost surely, 2^28975409841 is an apocalyptic number.

28975409841 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28975409841 is a deficient number, since it is larger than the sum of its proper divisors (17866972239).

28975409841 is a wasteful number, since it uses less digits than its factorization.

28975409841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159993.

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 28975409841 in words is "twenty-eight billion, nine hundred seventy-five million, four hundred nine thousand, eight hundred forty-one".