2028920249893 has 2 divisors, whose sum is σ = 2028920249894. Its totient is φ = 2028920249892.

The previous prime is 2028920249809. The next prime is 2028920249899. The reversal of 2028920249893 is 3989420298202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2028866930689 + 53319204 = 1424383^2 + 7302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2028920249893 is a prime.

It is a super-2 number, since 2×2028920249893² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028920249899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014460124946 + 1014460124947.

It is an arithmetic number, because the mean of its divisors is an integer number (1014460124947).

Almost surely, 2^{2028920249893} is an apocalyptic number.

It is an amenable number.

2028920249893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028920249893 is an equidigital number, since it uses as much as digits as its factorization.

2028920249893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8957952, while the sum is 58.

The spelling of 2028920249893 in words is "two trillion, twenty-eight billion, nine hundred twenty million, two hundred forty-nine thousand, eight hundred ninety-three".