1038274728401 has 2 divisors, whose sum is σ = 1038274728402. Its totient is φ = 1038274728400.

The previous prime is 1038274728397. The next prime is 1038274728409. The reversal of 1038274728401 is 1048274728301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 974265728401 + 64009000000 = 987049^2 + 253000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1038274728401 - 2² = 1038274728397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1038274728409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519137364200 + 519137364201.

It is an arithmetic number, because the mean of its divisors is an integer number (519137364201).

Almost surely, 2^{1038274728401} is an apocalyptic number.

It is an amenable number.

1038274728401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038274728401 is an equidigital number, since it uses as much as digits as its factorization.

1038274728401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 602112, while the sum is 47.

The spelling of 1038274728401 in words is "one trillion, thirty-eight billion, two hundred seventy-four million, seven hundred twenty-eight thousand, four hundred one".