28212124653 has 24 divisors (see below), whose sum is σ = 41473897920. Its totient is φ = 18476424000.

The previous prime is 28212124621. The next prime is 28212124657. The reversal of 28212124653 is 35642121282.

It is not a de Polignac number, because 28212124653 - 2⁵ = 28212124621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28212124657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79368 + ... + 250446.

It is an arithmetic number, because the mean of its divisors is an integer number (1728079080).

Almost surely, 2^28212124653 is an apocalyptic number.

It is an amenable number.

28212124653 is a deficient number, since it is larger than the sum of its proper divisors (13261773267).

28212124653 is a wasteful number, since it uses less digits than its factorization.

28212124653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171409 (or 171406 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The spelling of 28212124653 in words is "twenty-eight billion, two hundred twelve million, one hundred twenty-four thousand, six hundred fifty-three".