3835843787401 has 2 divisors, whose sum is σ = 3835843787402. Its totient is φ = 3835843787400.

The previous prime is 3835843787371. The next prime is 3835843787437. The reversal of 3835843787401 is 1047873485383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2216584992400 + 1619258795001 = 1488820^2 + 1272501^2 .

It is a cyclic number.

It is not a de Polignac number, because 3835843787401 - 2³¹ = 3833696303753 is a prime.

It is a super-2 number, since 2×3835843787401² (a number of 26 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 3835843787401.

It is not a weakly prime, because it can be changed into another prime (3835843787201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1917921893700 + 1917921893701.

It is an arithmetic number, because the mean of its divisors is an integer number (1917921893701).

Almost surely, 2^{3835843787401} is an apocalyptic number.

It is an amenable number.

3835843787401 is a deficient number, since it is larger than the sum of its proper divisors (1).

3835843787401 is an equidigital number, since it uses as much as digits as its factorization.

3835843787401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54190080, while the sum is 61.

The spelling of 3835843787401 in words is "three trillion, eight hundred thirty-five billion, eight hundred forty-three million, seven hundred eighty-seven thousand, four hundred one".