28820759131 has 2 divisors, whose sum is σ = 28820759132. Its totient is φ = 28820759130.

The previous prime is 28820759129. The next prime is 28820759147. The reversal of 28820759131 is 13195702882.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28820759131 - 2¹ = 28820759129 is a prime.

It is a super-2 number, since 2×28820759131² (a number of 22 digits) contains 22 as substring.

Together with 28820759129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28820759101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14410379565 + 14410379566.

It is an arithmetic number, because the mean of its divisors is an integer number (14410379566).

Almost surely, 2^28820759131 is an apocalyptic number.

28820759131 is a deficient number, since it is larger than the sum of its proper divisors (1).

28820759131 is an equidigital number, since it uses as much as digits as its factorization.

28820759131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 28820759131 in words is "twenty-eight billion, eight hundred twenty million, seven hundred fifty-nine thousand, one hundred thirty-one".