401152325809 has 4 divisors (see below), whose sum is σ = 414985164660. Its totient is φ = 387319486960.

The previous prime is 401152325801. The next prime is 401152325813. The reversal of 401152325809 is 908523251104.

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 204442335409 + 196709990400 = 452153^2 + 443520^2 .

It is a cyclic number.

It is not a de Polignac number, because 401152325809 - 2³ = 401152325801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401152325801) 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, 6916419382 + ... + 6916419439.

It is an arithmetic number, because the mean of its divisors is an integer number (103746291165).

Almost surely, 2^401152325809 is an apocalyptic number.

It is an amenable number.

401152325809 is a deficient number, since it is larger than the sum of its proper divisors (13832838851).

401152325809 is a wasteful number, since it uses less digits than its factorization.

401152325809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13832838850.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 401152325809 in words is "four hundred one billion, one hundred fifty-two million, three hundred twenty-five thousand, eight hundred nine".