28150873031 has 2 divisors, whose sum is σ = 28150873032. Its totient is φ = 28150873030.

The previous prime is 28150873001. The next prime is 28150873033. The reversal of 28150873031 is 13037805182.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28150873031 - 2²⁶ = 28083764167 is a prime.

It is a super-2 number, since 2×28150873031² (a number of 22 digits) contains 22 as substring.

Together with 28150873033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28150873033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14075436515 + 14075436516.

It is an arithmetic number, because the mean of its divisors is an integer number (14075436516).

Almost surely, 2^28150873031 is an apocalyptic number.

28150873031 is a deficient number, since it is larger than the sum of its proper divisors (1).

28150873031 is an equidigital number, since it uses as much as digits as its factorization.

28150873031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 28150873031 in words is "twenty-eight billion, one hundred fifty million, eight hundred seventy-three thousand, thirty-one".