401443104545 has 16 divisors (see below), whose sum is σ = 552538103808. Its totient is φ = 274281491520.

The previous prime is 401443104541. The next prime is 401443104589. The reversal of 401443104545 is 545401344104.

It is not a de Polignac number, because 401443104545 - 2² = 401443104541 is a prime.

It is a super-2 number, since 2×401443104545² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (401443104541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20693921 + ... + 20713310.

It is an arithmetic number, because the mean of its divisors is an integer number (34533631488).

Almost surely, 2^401443104545 is an apocalyptic number.

It is an amenable number.

401443104545 is a deficient number, since it is larger than the sum of its proper divisors (151094999263).

401443104545 is a wasteful number, since it uses less digits than its factorization.

401443104545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41407520.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 401443104545 its reverse (545401344104), we get a palindrome (946844448649).

The spelling of 401443104545 in words is "four hundred one billion, four hundred forty-three million, one hundred four thousand, five hundred forty-five".