400734095065 has 4 divisors (see below), whose sum is σ = 480880914084. Its totient is φ = 320587276048.

The previous prime is 400734095063. The next prime is 400734095081. The reversal of 400734095065 is 560590437004.

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 267260048784 + 133474046281 = 516972^2 + 365341^2 .

It is a cyclic number.

It is not a de Polignac number, because 400734095065 - 2¹ = 400734095063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400734095063) 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, 40073409502 + ... + 40073409511.

It is an arithmetic number, because the mean of its divisors is an integer number (120220228521).

Almost surely, 2^400734095065 is an apocalyptic number.

It is an amenable number.

400734095065 is a deficient number, since it is larger than the sum of its proper divisors (80146819019).

400734095065 is an equidigital number, since it uses as much as digits as its factorization.

400734095065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80146819018.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 400734095065 in words is "four hundred billion, seven hundred thirty-four million, ninety-five thousand, sixty-five".