28767077871 has 8 divisors (see below), whose sum is σ = 43835547264. Its totient is φ = 16438330200.

The previous prime is 28767077849. The next prime is 28767077893. The reversal of 28767077871 is 17877076782.

It is an interprime number because it is at equal distance from previous prime (28767077849) and next prime (28767077893).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28767077871 - 2¹¹ = 28767075823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28767077821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684930405 + ... + 684930446.

It is an arithmetic number, because the mean of its divisors is an integer number (5479443408).

Almost surely, 2^28767077871 is an apocalyptic number.

28767077871 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28767077871 is a deficient number, since it is larger than the sum of its proper divisors (15068469393).

28767077871 is a wasteful number, since it uses less digits than its factorization.

28767077871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369860861.

The product of its (nonzero) digits is 12907776, while the sum is 60.

The spelling of 28767077871 in words is "twenty-eight billion, seven hundred sixty-seven million, seventy-seven thousand, eight hundred seventy-one".