401536233631205 has 4 divisors (see below), whose sum is σ = 481843480357452. Its totient is φ = 321228986904960.

The previous prime is 401536233631189. The next prime is 401536233631207. The reversal of 401536233631205 is 502136332635104.

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 84934637568001 + 316601596063204 = 9215999^2 + 17793302^2 .

It is not a de Polignac number, because 401536233631205 - 2⁴ = 401536233631189 is a prime.

It is a super-2 number, since 2×401536233631205² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401536233631207) 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, 40153623363116 + ... + 40153623363125.

It is an arithmetic number, because the mean of its divisors is an integer number (120460870089363).

Almost surely, 2^{401536233631205} is an apocalyptic number.

It is an amenable number.

401536233631205 is a deficient number, since it is larger than the sum of its proper divisors (80307246726247).

401536233631205 is an equidigital number, since it uses as much as digits as its factorization.

401536233631205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80307246726246.

The product of its (nonzero) digits is 1166400, while the sum is 44.

The spelling of 401536233631205 in words is "four hundred one trillion, five hundred thirty-six billion, two hundred thirty-three million, six hundred thirty-one thousand, two hundred five".