403571421045 has 48 divisors (see below), whose sum is σ = 753444527472. Its totient is φ = 198651985920.

The previous prime is 403571421041. The next prime is 403571421067. The reversal of 403571421045 is 540124175304.

403571421045 is a `hidden beast` number, since 4 + 0 + 3 + 571 + 42 + 1 + 0 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 119858594436 + 283712826609 = 346206^2 + 532647^2 .

It is not a de Polignac number, because 403571421045 - 2² = 403571421041 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403571421041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4221475 + ... + 4316015.

It is an arithmetic number, because the mean of its divisors is an integer number (15696760989).

Almost surely, 2^403571421045 is an apocalyptic number.

403571421045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

403571421045 is a deficient number, since it is larger than the sum of its proper divisors (349873106427).

403571421045 is a wasteful number, since it uses less digits than its factorization.

403571421045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101862 (or 101859 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

Adding to 403571421045 its reverse (540124175304), we get a palindrome (943695596349).

The spelling of 403571421045 in words is "four hundred three billion, five hundred seventy-one million, four hundred twenty-one thousand, forty-five".