28261233058 has 8 divisors (see below), whose sum is σ = 44885487852. Its totient is φ = 13299403776.

The previous prime is 28261233037. The next prime is 28261233059. The reversal of 28261233058 is 85033216282.

It can be written as a sum of positive squares in 2 ways, for example, as 25402940689 + 2858292369 = 159383^2 + 53463^2 .

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

It is a super-3 number, since 3×28261233058³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28261233058.

It is not an unprimeable number, because it can be changed into a prime (28261233059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415606335 + ... + 415606402.

Almost surely, 2^28261233058 is an apocalyptic number.

28261233058 is a deficient number, since it is larger than the sum of its proper divisors (16624254794).

28261233058 is a wasteful number, since it uses less digits than its factorization.

28261233058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831212756.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 28261233058 in words is "twenty-eight billion, two hundred sixty-one million, two hundred thirty-three thousand, fifty-eight".