409152864761 has 4 divisors (see below), whose sum is σ = 409439187300. Its totient is φ = 408866542224.

The previous prime is 409152864751. The next prime is 409152864797. The reversal of 409152864761 is 167468251904.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103647939136 + 305504925625 = 321944^2 + 552725^2 .

It is a cyclic number.

It is not a de Polignac number, because 409152864761 - 2⁶ = 409152864697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409152864751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143159126 + ... + 143161983.

It is an arithmetic number, because the mean of its divisors is an integer number (102359796825).

Almost surely, 2^409152864761 is an apocalyptic number.

It is an amenable number.

409152864761 is a deficient number, since it is larger than the sum of its proper divisors (286322539).

409152864761 is a wasteful number, since it uses less digits than its factorization.

409152864761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286322538.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 409152864761 in words is "four hundred nine billion, one hundred fifty-two million, eight hundred sixty-four thousand, seven hundred sixty-one".