28777162783 has 2 divisors, whose sum is σ = 28777162784. Its totient is φ = 28777162782.

The previous prime is 28777162781. The next prime is 28777162789. The reversal of 28777162783 is 38726177782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28777162783 - 2¹ = 28777162781 is a prime.

It is a super-3 number, since 3×28777162783³ (a number of 32 digits) contains 333 as substring.

Together with 28777162781, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28777162781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14388581391 + 14388581392.

It is an arithmetic number, because the mean of its divisors is an integer number (14388581392).

Almost surely, 2^28777162783 is an apocalyptic number.

28777162783 is a deficient number, since it is larger than the sum of its proper divisors (1).

28777162783 is an equidigital number, since it uses as much as digits as its factorization.

28777162783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11063808, while the sum is 58.

The spelling of 28777162783 in words is "twenty-eight billion, seven hundred seventy-seven million, one hundred sixty-two thousand, seven hundred eighty-three".