401602361520389 has 2 divisors, whose sum is σ = 401602361520390. Its totient is φ = 401602361520388.

The previous prime is 401602361520337. The next prime is 401602361520407. The reversal of 401602361520389 is 983025163206104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 398898079939489 + 2704281580900 = 19972433^2 + 1644470^2 .

It is a cyclic number.

It is not a de Polignac number, because 401602361520389 - 2³² = 401598066553093 is a prime.

It is a super-2 number, since 2×401602361520389² (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 (401602361526389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200801180760194 + 200801180760195.

It is an arithmetic number, because the mean of its divisors is an integer number (200801180760195).

Almost surely, 2^{401602361520389} is an apocalyptic number.

It is an amenable number.

401602361520389 is a deficient number, since it is larger than the sum of its proper divisors (1).

401602361520389 is an equidigital number, since it uses as much as digits as its factorization.

401602361520389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 401602361520389 in words is "four hundred one trillion, six hundred two billion, three hundred sixty-one million, five hundred twenty thousand, three hundred eighty-nine".