28212124654 has 48 divisors (see below), whose sum is σ = 51850141200. Its totient is φ = 11447485056.

The previous prime is 28212124621. The next prime is 28212124657. The reversal of 28212124654 is 45642121282.

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, 3886092 + ... + 3893344.

It is an arithmetic number, because the mean of its divisors is an integer number (1080211275).

Almost surely, 2^28212124654 is an apocalyptic number.

28212124654 is a deficient number, since it is larger than the sum of its proper divisors (23638016546).

28212124654 is a wasteful number, since it uses less digits than its factorization.

28212124654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9377 (or 9370 counting only the distinct ones).

The product of its digits is 61440, while the sum is 37.

The spelling of 28212124654 in words is "twenty-eight billion, two hundred twelve million, one hundred twenty-four thousand, six hundred fifty-four".