28283278075031 has 16 divisors (see below), whose sum is σ = 32413161897984. Its totient is φ = 24175753599744.

The previous prime is 28283278075009. The next prime is 28283278075069. The reversal of 28283278075031 is 13057087238282.

It is a cyclic number.

It is not a de Polignac number, because 28283278075031 - 2¹⁸ = 28283277812887 is a prime.

It is a super-2 number, since 2×28283278075031² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28283278075531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65636426 + ... + 66065928.

It is an arithmetic number, because the mean of its divisors is an integer number (2025822618624).

Almost surely, 2^{28283278075031} is an apocalyptic number.

28283278075031 is a deficient number, since it is larger than the sum of its proper divisors (4129883822953).

28283278075031 is a wasteful number, since it uses less digits than its factorization.

28283278075031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455510.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 28283278075031 in words is "twenty-eight trillion, two hundred eighty-three billion, two hundred seventy-eight million, seventy-five thousand, thirty-one".