28714662911 has 16 divisors (see below), whose sum is σ = 31463083680. Its totient is φ = 25989396480.

The previous prime is 28714662901. The next prime is 28714662917. The reversal of 28714662911 is 11926641782.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28714662911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28714662917) 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, 4899695 + ... + 4905551.

It is an arithmetic number, because the mean of its divisors is an integer number (1966442730).

Almost surely, 2^28714662911 is an apocalyptic number.

28714662911 is a deficient number, since it is larger than the sum of its proper divisors (2748420769).

28714662911 is a wasteful number, since it uses less digits than its factorization.

28714662911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7754.

The product of its digits is 290304, while the sum is 47.

The spelling of 28714662911 in words is "twenty-eight billion, seven hundred fourteen million, six hundred sixty-two thousand, nine hundred eleven".