28209285741 has 24 divisors (see below), whose sum is σ = 47118810144. Its totient is φ = 14879622240.

The previous prime is 28209285701. The next prime is 28209285787. The reversal of 28209285741 is 14758290282.

It is not a de Polignac number, because 28209285741 - 2¹³ = 28209277549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28209285701) 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, 7378855 + ... + 7382676.

It is an arithmetic number, because the mean of its divisors is an integer number (1963283756).

Almost surely, 2^28209285741 is an apocalyptic number.

28209285741 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28209285741 is a deficient number, since it is larger than the sum of its proper divisors (18909524403).

28209285741 is a wasteful number, since it uses less digits than its factorization.

28209285741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14761561 (or 14761554 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 28209285741 in words is "twenty-eight billion, two hundred nine million, two hundred eighty-five thousand, seven hundred forty-one".