4028900685401 has 2 divisors, whose sum is σ = 4028900685402. Its totient is φ = 4028900685400.

The previous prime is 4028900685377. The next prime is 4028900685449. The reversal of 4028900685401 is 1045860098204.

4028900685401 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4027406785600 + 1493899801 = 2006840^2 + 38651^2 .

It is a cyclic number.

It is not a de Polignac number, because 4028900685401 - 2¹⁰ = 4028900684377 is a prime.

It is not a weakly prime, because it can be changed into another prime (4028900685001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2014450342700 + 2014450342701.

It is an arithmetic number, because the mean of its divisors is an integer number (2014450342701).

Almost surely, 2^{4028900685401} is an apocalyptic number.

It is an amenable number.

4028900685401 is a deficient number, since it is larger than the sum of its proper divisors (1).

4028900685401 is an equidigital number, since it uses as much as digits as its factorization.

4028900685401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 4028900685401 in words is "four trillion, twenty-eight billion, nine hundred million, six hundred eighty-five thousand, four hundred one".