28766377068 has 48 divisors (see below), whose sum is σ = 78856087296. Its totient is φ = 8046538560.

The previous prime is 28766377063. The next prime is 28766377069. The reversal of 28766377068 is 86077366782.

It is not an unprimeable number, because it can be changed into a prime (28766377061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8380096 + ... + 8383527.

It is an arithmetic number, because the mean of its divisors is an integer number (1642835152).

Almost surely, 2^28766377068 is an apocalyptic number.

It is an amenable number.

28766377068 is an abundant number, since it is smaller than the sum of its proper divisors (50089710228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28766377068 is a wasteful number, since it uses less digits than its factorization.

28766377068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16763654 (or 16763652 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 60.

The spelling of 28766377068 in words is "twenty-eight billion, seven hundred sixty-six million, three hundred seventy-seven thousand, sixty-eight".