28986761801 has 2 divisors, whose sum is σ = 28986761802. Its totient is φ = 28986761800.

The previous prime is 28986761767. The next prime is 28986761803. The reversal of 28986761801 is 10816768982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24956416576 + 4030345225 = 157976^2 + 63485^2 .

It is a cyclic number.

It is not a de Polignac number, because 28986761801 - 2¹⁸ = 28986499657 is a prime.

Together with 28986761803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28986761803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14493380900 + 14493380901.

It is an arithmetic number, because the mean of its divisors is an integer number (14493380901).

Almost surely, 2^28986761801 is an apocalyptic number.

It is an amenable number.

28986761801 is a deficient number, since it is larger than the sum of its proper divisors (1).

28986761801 is an equidigital number, since it uses as much as digits as its factorization.

28986761801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 56.

The spelling of 28986761801 in words is "twenty-eight billion, nine hundred eighty-six million, seven hundred sixty-one thousand, eight hundred one".