28535644876 has 12 divisors (see below), whose sum is σ = 52108569072. Its totient is φ = 13647482288.

The previous prime is 28535644871. The next prime is 28535644889. The reversal of 28535644876 is 67844653582.

It is a self number, because there is not a number n which added to its sum of digits gives 28535644876.

It is not an unprimeable number, because it can be changed into a prime (28535644871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155084935 + ... + 155085118.

It is an arithmetic number, because the mean of its divisors is an integer number (4342380756).

Almost surely, 2^28535644876 is an apocalyptic number.

It is an amenable number.

28535644876 is a deficient number, since it is larger than the sum of its proper divisors (23572924196).

28535644876 is a wasteful number, since it uses less digits than its factorization.

28535644876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310170080 (or 310170078 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 58.

The spelling of 28535644876 in words is "twenty-eight billion, five hundred thirty-five million, six hundred forty-four thousand, eight hundred seventy-six".