28058950281 has 8 divisors (see below), whose sum is σ = 38324420064. Its totient is φ = 18249723680.

The previous prime is 28058950273. The next prime is 28058950291. The reversal of 28058950281 is 18205985082.

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

It is a cyclic number.

It is not a de Polignac number, because 28058950281 - 2³ = 28058950273 is a prime.

It is a super-2 number, since 2×28058950281² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28058950281.

It is not an unprimeable number, because it can be changed into a prime (28058950201) 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, 114060651 + ... + 114060896.

It is an arithmetic number, because the mean of its divisors is an integer number (4790552508).

Almost surely, 2^28058950281 is an apocalyptic number.

It is an amenable number.

28058950281 is a deficient number, since it is larger than the sum of its proper divisors (10265469783).

28058950281 is a wasteful number, since it uses less digits than its factorization.

28058950281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228121591.

The product of its (nonzero) digits is 460800, while the sum is 48.

The spelling of 28058950281 in words is "twenty-eight billion, fifty-eight million, nine hundred fifty thousand, two hundred eighty-one".