28855797652 has 24 divisors (see below), whose sum is σ = 55094860800. Its totient is φ = 13114719360.

The previous prime is 28855797647. The next prime is 28855797653. The reversal of 28855797652 is 25679755882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28855797653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390573 + ... + 458539.

It is an arithmetic number, because the mean of its divisors is an integer number (2295619200).

Almost surely, 2^28855797652 is an apocalyptic number.

28855797652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28855797652 is a deficient number, since it is larger than the sum of its proper divisors (26239063148).

28855797652 is a wasteful number, since it uses less digits than its factorization.

28855797652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77631 (or 77629 counting only the distinct ones).

The product of its digits is 84672000, while the sum is 64.

The spelling of 28855797652 in words is "twenty-eight billion, eight hundred fifty-five million, seven hundred ninety-seven thousand, six hundred fifty-two".