28364730100 has 72 divisors (see below), whose sum is σ = 70595356608. Its totient is φ = 9690374400.

The previous prime is 28364730091. The next prime is 28364730103. The reversal of 28364730100 is 103746382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28364730103) 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, 124599 + ... + 268801.

It is an arithmetic number, because the mean of its divisors is an integer number (980491064).

Almost surely, 2^28364730100 is an apocalyptic number.

28364730100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28364730100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35297678304).

28364730100 is an abundant number, since it is smaller than the sum of its proper divisors (42230626508).

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

28364730100 is a wasteful number, since it uses less digits than its factorization.

28364730100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144505 (or 144498 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 28364730100 in words is "twenty-eight billion, three hundred sixty-four million, seven hundred thirty thousand, one hundred".