350399187401 has 2 divisors, whose sum is σ = 350399187402. Its totient is φ = 350399187400.

The previous prime is 350399187379. The next prime is 350399187421. The reversal of 350399187401 is 104781993053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272404661776 + 77994525625 = 521924^2 + 279275^2 .

It is a cyclic number.

It is not a de Polignac number, because 350399187401 - 2⁶ = 350399187337 is a prime.

It is a super-3 number, since 3×350399187401³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 350399187401.

It is not a weakly prime, because it can be changed into another prime (350399187421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175199593700 + 175199593701.

It is an arithmetic number, because the mean of its divisors is an integer number (175199593701).

Almost surely, 2^350399187401 is an apocalyptic number.

It is an amenable number.

350399187401 is a deficient number, since it is larger than the sum of its proper divisors (1).

350399187401 is an equidigital number, since it uses as much as digits as its factorization.

350399187401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 350399187401 in words is "three hundred fifty billion, three hundred ninety-nine million, one hundred eighty-seven thousand, four hundred one".