2078928538801 has 3 divisors (see below), whose sum is σ = 2078929980651. Its totient is φ = 2078927096952.

The previous prime is 2078928538783. The next prime is 2078928538807. The reversal of 2078928538801 is 1088358298702.

The square root of 2078928538801 is 1441849.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2068278298801 + 10650240000 = 1438151^2 + 103200^2 .

It is not a de Polignac number, because 2078928538801 - 2³⁹ = 1529172724913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2078928538801.

It is not an unprimeable number, because it can be changed into a prime (2078928538807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 720925 + ... + 2162773.

It is an arithmetic number, because the mean of its divisors is an integer number (692976660217).

Almost surely, 2^{2078928538801} is an apocalyptic number.

2078928538801 is the 1441849-th square number.

2078928538801 is the 720925-th centered octagonal number.

It is an amenable number.

2078928538801 is a deficient number, since it is larger than the sum of its proper divisors (1441850).

2078928538801 is an frugal number, since it uses more digits than its factorization.

2078928538801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883698 (or 1441849 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 61.

The spelling of 2078928538801 in words is "two trillion, seventy-eight billion, nine hundred twenty-eight million, five hundred thirty-eight thousand, eight hundred one".