36803281428 has 144 divisors (see below), whose sum is σ = 99142243200. Its totient is φ = 11510505216.

The previous prime is 36803281421. The next prime is 36803281439. The reversal of 36803281428 is 82418230863.

36803281428 is a `hidden beast` number, since 368 + 0 + 3 + 281 + 4 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36803281421) 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, 27901753 + ... + 27903071.

It is an arithmetic number, because the mean of its divisors is an integer number (688487800).

Almost surely, 2^36803281428 is an apocalyptic number.

36803281428 is a gapful number since it is divisible by the number (38) 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 36803281428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49571121600).

36803281428 is an abundant number, since it is smaller than the sum of its proper divisors (62338961772).

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

36803281428 is a wasteful number, since it uses less digits than its factorization.

36803281428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 36803281428 in words is "thirty-six billion, eight hundred three million, two hundred eighty-one thousand, four hundred twenty-eight".