401730585428917 has 2 divisors, whose sum is σ = 401730585428918. Its totient is φ = 401730585428916.

The previous prime is 401730585428747. The next prime is 401730585429031. The reversal of 401730585428917 is 719824585037104.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225737222898916 + 175993362530001 = 15024554^2 + 13266249^2 .

It is a cyclic number.

It is not a de Polignac number, because 401730585428917 - 2¹¹ = 401730585426869 is a prime.

It is a super-2 number, since 2×401730585428917² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401730585428617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200865292714458 + 200865292714459.

It is an arithmetic number, because the mean of its divisors is an integer number (200865292714459).

Almost surely, 2^{401730585428917} is an apocalyptic number.

It is an amenable number.

401730585428917 is a deficient number, since it is larger than the sum of its proper divisors (1).

401730585428917 is an equidigital number, since it uses as much as digits as its factorization.

401730585428917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67737600, while the sum is 64.

The spelling of 401730585428917 in words is "four hundred one trillion, seven hundred thirty billion, five hundred eighty-five million, four hundred twenty-eight thousand, nine hundred seventeen".