401626801453 has 2 divisors, whose sum is σ = 401626801454. Its totient is φ = 401626801452.

The previous prime is 401626801427. The next prime is 401626801519. The reversal of 401626801453 is 354108626104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 337279854564 + 64346946889 = 580758^2 + 253667^2 .

It is a cyclic number.

It is not a de Polignac number, because 401626801453 - 2⁹ = 401626800941 is a prime.

It is a super-2 number, since 2×401626801453² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401626801253) 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, 200813400726 + 200813400727.

It is an arithmetic number, because the mean of its divisors is an integer number (200813400727).

Almost surely, 2^401626801453 is an apocalyptic number.

It is an amenable number.

401626801453 is a deficient number, since it is larger than the sum of its proper divisors (1).

401626801453 is an equidigital number, since it uses as much as digits as its factorization.

401626801453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 401626801453 in words is "four hundred one billion, six hundred twenty-six million, eight hundred one thousand, four hundred fifty-three".