2028395479500 has 432 divisors, whose sum is σ = 7155966129312. Its totient is φ = 499286851200.

The previous prime is 2028395479457. The next prime is 2028395479501. The reversal of 2028395479500 is 59745938202.

2028395479500 is a `hidden beast` number, since 2 + 0 + 2 + 8 + 3 + 9 + 547 + 95 + 0 + 0 = 666.

It is a super-2 number, since 2×2028395479500² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2028395479501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 42622719 + ... + 42670281.

Almost surely, 2^{2028395479500} is an apocalyptic number.

2028395479500 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 2028395479500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3577983064656).

2028395479500 is an abundant number, since it is smaller than the sum of its proper divisors (5127570649812).

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

2028395479500 is an equidigital number, since it uses as much as digits as its factorization.

2028395479500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47619 (or 47586 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 2028395479500 in words is "two trillion, twenty-eight billion, three hundred ninety-five million, four hundred seventy-nine thousand, five hundred".