2028156352368 has 40 divisors (see below), whose sum is σ = 5249421955968. Its totient is φ = 674759466432.

The previous prime is 2028156352361. The next prime is 2028156352507. The reversal of 2028156352368 is 8632536518202.

It is a super-2 number, since 2×2028156352368² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2028156352368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028156352361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40369980 + ... + 40420187.

Almost surely, 2^{2028156352368} is an apocalyptic number.

It is an amenable number.

2028156352368 is an abundant number, since it is smaller than the sum of its proper divisors (3221265603600).

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

2028156352368 is a wasteful number, since it uses less digits than its factorization.

2028156352368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80790701 (or 80790695 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 2028156352368 in words is "two trillion, twenty-eight billion, one hundred fifty-six million, three hundred fifty-two thousand, three hundred sixty-eight".