28655293366 has 16 divisors (see below), whose sum is σ = 49125716640. Its totient is φ = 12280250880.

The previous prime is 28655293357. The next prime is 28655293367. The reversal of 28655293366 is 66339255682.

It is a happy number.

It is a super-2 number, since 2×28655293366² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28655293367) 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, 386326 + ... + 454486.

It is an arithmetic number, because the mean of its divisors is an integer number (3070357290).

Almost surely, 2^28655293366 is an apocalyptic number.

28655293366 is a deficient number, since it is larger than the sum of its proper divisors (20470423274).

28655293366 is a wasteful number, since it uses less digits than its factorization.

28655293366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98199.

The product of its digits is 13996800, while the sum is 55.

The spelling of 28655293366 in words is "twenty-eight billion, six hundred fifty-five million, two hundred ninety-three thousand, three hundred sixty-six".