400721468585 has 8 divisors (see below), whose sum is σ = 485534362560. Its totient is φ = 317464774704.

The previous prime is 400721468531. The next prime is 400721468611. The reversal of 400721468585 is 585864127004.

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

It is a cyclic number.

It is not a de Polignac number, because 400721468585 - 2³⁰ = 399647726761 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389049455 + ... + 389050484.

It is an arithmetic number, because the mean of its divisors is an integer number (60691795320).

Almost surely, 2^400721468585 is an apocalyptic number.

It is an amenable number.

400721468585 is a deficient number, since it is larger than the sum of its proper divisors (84812893975).

400721468585 is a wasteful number, since it uses less digits than its factorization.

400721468585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778100047.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 400721468585 in words is "four hundred billion, seven hundred twenty-one million, four hundred sixty-eight thousand, five hundred eighty-five".