28500280633031 has 2 divisors, whose sum is σ = 28500280633032. Its totient is φ = 28500280633030.

The previous prime is 28500280632949. The next prime is 28500280633073. The reversal of 28500280633031 is 13033608200582.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28500280633031 is a prime.

It is a super-2 number, since 2×28500280633031² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28500280633031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28500280636031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14250140316515 + 14250140316516.

It is an arithmetic number, because the mean of its divisors is an integer number (14250140316516).

Almost surely, 2^{28500280633031} is an apocalyptic number.

28500280633031 is a deficient number, since it is larger than the sum of its proper divisors (1).

28500280633031 is an equidigital number, since it uses as much as digits as its factorization.

28500280633031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 28500280633031 in words is "twenty-eight trillion, five hundred billion, two hundred eighty million, six hundred thirty-three thousand, thirty-one".