28875165251639 has 8 divisors (see below), whose sum is σ = 33078574109088. Its totient is φ = 24691352706720.

The previous prime is 28875165251627. The next prime is 28875165251657. The reversal of 28875165251639 is 93615256157882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28875165251639 - 2¹⁶ = 28875165186103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28875165251039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4899074972 + ... + 4899080865.

It is an arithmetic number, because the mean of its divisors is an integer number (4134821763636).

Almost surely, 2^{28875165251639} is an apocalyptic number.

28875165251639 is a deficient number, since it is larger than the sum of its proper divisors (4203408857449).

28875165251639 is an equidigital number, since it uses as much as digits as its factorization.

28875165251639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9798156265.

The product of its digits is 217728000, while the sum is 68.

The spelling of 28875165251639 in words is "twenty-eight trillion, eight hundred seventy-five billion, one hundred sixty-five million, two hundred fifty-one thousand, six hundred thirty-nine".