28296668662 has 4 divisors (see below), whose sum is σ = 42445002996. Its totient is φ = 14148334330.

The previous prime is 28296668651. The next prime is 28296668671. The reversal of 28296668662 is 26686669282.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28296668662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7074167164 + ... + 7074167167.

It is an arithmetic number, because the mean of its divisors is an integer number (10611250749).

Almost surely, 2^28296668662 is an apocalyptic number.

28296668662 is a deficient number, since it is larger than the sum of its proper divisors (14148334334).

28296668662 is a wasteful number, since it uses less digits than its factorization.

28296668662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14148334333.

The product of its digits is 35831808, while the sum is 61.

The spelling of 28296668662 in words is "twenty-eight billion, two hundred ninety-six million, six hundred sixty-eight thousand, six hundred sixty-two".