28381937301 has 8 divisors (see below), whose sum is σ = 42047314560. Its totient is φ = 18921291516.

The previous prime is 28381937251. The next prime is 28381937327. The reversal of 28381937301 is 10373918382.

It is a happy number.

It is not a de Polignac number, because 28381937301 - 2¹⁰ = 28381936277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28381937341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525591405 + ... + 525591458.

It is an arithmetic number, because the mean of its divisors is an integer number (5255914320).

Almost surely, 2^28381937301 is an apocalyptic number.

It is an amenable number.

28381937301 is a deficient number, since it is larger than the sum of its proper divisors (13665377259).

28381937301 is a wasteful number, since it uses less digits than its factorization.

28381937301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051182872 (or 1051182866 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 28381937301 in words is "twenty-eight billion, three hundred eighty-one million, nine hundred thirty-seven thousand, three hundred one".