2028266787402 has 64 divisors (see below), whose sum is σ = 4556288880000. Its totient is φ = 668755471104.

The previous prime is 2028266787389. The next prime is 2028266787413. The reversal of 2028266787402 is 2047876628202.

2028266787402 is a `hidden beast` number, since 20 + 2 + 82 + 6 + 67 + 87 + 402 = 666.

It is a super-2 number, since 2×2028266787402² (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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3199849 + ... + 3780947.

It is an arithmetic number, because the mean of its divisors is an integer number (71192013750).

Almost surely, 2^{2028266787402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2028266787402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2278144440000).

2028266787402 is an abundant number, since it is smaller than the sum of its proper divisors (2528022092598).

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

2028266787402 is a wasteful number, since it uses less digits than its factorization.

2028266787402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581812 (or 581806 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 2028266787402 in words is "two trillion, twenty-eight billion, two hundred sixty-six million, seven hundred eighty-seven thousand, four hundred two".