28279403011 has 2 divisors, whose sum is σ = 28279403012. Its totient is φ = 28279403010.

The previous prime is 28279402979. The next prime is 28279403023. The reversal of 28279403011 is 11030497282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28279403011 - 2⁵ = 28279402979 is a prime.

It is a super-2 number, since 2×28279403011² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28279404011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14139701505 + 14139701506.

It is an arithmetic number, because the mean of its divisors is an integer number (14139701506).

Almost surely, 2^28279403011 is an apocalyptic number.

28279403011 is a deficient number, since it is larger than the sum of its proper divisors (1).

28279403011 is an equidigital number, since it uses as much as digits as its factorization.

28279403011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 28279403011 in words is "twenty-eight billion, two hundred seventy-nine million, four hundred three thousand, eleven".