396539431810 has 16 divisors (see below), whose sum is σ = 755757505656. Its totient is φ = 149285433088.

The previous prime is 396539431801. The next prime is 396539431823. The reversal of 396539431810 is 18134935693.

It can be written as a sum of positive squares in 4 ways, for example, as 396349570969 + 189860841 = 629563^2 + 13779^2 .

It is a super-2 number, since 2×396539431810² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1166292277 + ... + 1166292616.

Almost surely, 2^396539431810 is an apocalyptic number.

396539431810 is a deficient number, since it is larger than the sum of its proper divisors (359218073846).

396539431810 is a wasteful number, since it uses less digits than its factorization.

396539431810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332584917.

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 396539431810 in words is "three hundred ninety-six billion, five hundred thirty-nine million, four hundred thirty-one thousand, eight hundred ten".