28076665674 has 32 divisors (see below), whose sum is σ = 60706313280. Its totient is φ = 8626684032.

The previous prime is 28076665667. The next prime is 28076665679. The reversal of 28076665674 is 47656667082.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (28076665679) 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, 3323979 + ... + 3332414.

It is an arithmetic number, because the mean of its divisors is an integer number (1897072290).

Almost surely, 2^28076665674 is an apocalyptic number.

28076665674 is an abundant number, since it is smaller than the sum of its proper divisors (32629647606).

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

28076665674 is a wasteful number, since it uses less digits than its factorization.

28076665674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6656454.

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 28076665674 in words is "twenty-eight billion, seventy-six million, six hundred sixty-five thousand, six hundred seventy-four".