28937445369924 has 144 divisors (see below), whose sum is σ = 83562935758848. Its totient is φ = 7631495524224.

The previous prime is 28937445369919. The next prime is 28937445369929. The reversal of 28937445369924 is 42996354473982.

It is an interprime number because it is at equal distance from previous prime (28937445369919) and next prime (28937445369929).

It is not an unprimeable number, because it can be changed into a prime (28937445369929) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 454623469 + ... + 454687115.

It is an arithmetic number, because the mean of its divisors is an integer number (580298164992).

Almost surely, 2^{28937445369924} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28937445369924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41781467879424).

28937445369924 is an abundant number, since it is smaller than the sum of its proper divisors (54625490388924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28937445369924 is a wasteful number, since it uses less digits than its factorization.

28937445369924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95714 (or 95699 counting only the distinct ones).

The product of its digits is 2821754880, while the sum is 75.

The spelling of 28937445369924 in words is "twenty-eight trillion, nine hundred thirty-seven billion, four hundred forty-five million, three hundred sixty-nine thousand, nine hundred twenty-four".