406132641021 has 8 divisors (see below), whose sum is σ = 570010724320. Its totient is φ = 256504825872.

The previous prime is 406132640981. The next prime is 406132641023. The reversal of 406132641021 is 120146231604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 406132641021 - 2¹¹ = 406132638973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 406132641021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406132641023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3562566970 + ... + 3562567083.

It is an arithmetic number, because the mean of its divisors is an integer number (71251340540).

Almost surely, 2^406132641021 is an apocalyptic number.

It is an amenable number.

406132641021 is a deficient number, since it is larger than the sum of its proper divisors (163878083299).

406132641021 is a wasteful number, since it uses less digits than its factorization.

406132641021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7125134075.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 406132641021 its reverse (120146231604), we get a palindrome (526278872625).

The spelling of 406132641021 in words is "four hundred six billion, one hundred thirty-two million, six hundred forty-one thousand, twenty-one".