28369903031 has 2 divisors, whose sum is σ = 28369903032. Its totient is φ = 28369903030.

The previous prime is 28369903021. The next prime is 28369903039. The reversal of 28369903031 is 13030996382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28369903031 - 2²⁶ = 28302794167 is a prime.

It is a super-2 number, since 2×28369903031² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28369903039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14184951515 + 14184951516.

It is an arithmetic number, because the mean of its divisors is an integer number (14184951516).

Almost surely, 2^28369903031 is an apocalyptic number.

28369903031 is a deficient number, since it is larger than the sum of its proper divisors (1).

28369903031 is an equidigital number, since it uses as much as digits as its factorization.

28369903031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 28369903031 in words is "twenty-eight billion, three hundred sixty-nine million, nine hundred three thousand, thirty-one".