28067488951531 has 2 divisors, whose sum is σ = 28067488951532. Its totient is φ = 28067488951530.

The previous prime is 28067488951451. The next prime is 28067488951613. The reversal of 28067488951531 is 13515988476082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28067488951531 - 2²⁵ = 28067455397099 is a prime.

It is a super-3 number, since 3×28067488951531³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (28067488951231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14033744475765 + 14033744475766.

It is an arithmetic number, because the mean of its divisors is an integer number (14033744475766).

It is a 1-persistent number, because it is pandigital, but 2⋅28067488951531 = 56134977903062 is not.

Almost surely, 2^{28067488951531} is an apocalyptic number.

28067488951531 is a deficient number, since it is larger than the sum of its proper divisors (1).

28067488951531 is an equidigital number, since it uses as much as digits as its factorization.

28067488951531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116121600, while the sum is 67.

The spelling of 28067488951531 in words is "twenty-eight trillion, sixty-seven billion, four hundred eighty-eight million, nine hundred fifty-one thousand, five hundred thirty-one".