408622464128 has 24 divisors (see below), whose sum is σ = 814066973265. Its totient is φ = 204307616000.

The previous prime is 408622464127. The next prime is 408622464137. The reversal of 408622464128 is 821464226804.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 354653598784 + 53968865344 = 595528^2 + 232312^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=452008.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408622464127) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7203878 + ... + 7260378.

Almost surely, 2^408622464128 is an apocalyptic number.

It is an amenable number.

408622464128 is a deficient number, since it is larger than the sum of its proper divisors (405444509137).

408622464128 is an frugal number, since it uses more digits than its factorization.

408622464128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113016 (or 56503 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 47.

The spelling of 408622464128 in words is "four hundred eight billion, six hundred twenty-two million, four hundred sixty-four thousand, one hundred twenty-eight".