406312195994 has 4 divisors (see below), whose sum is σ = 609468293994. Its totient is φ = 203156097996.

The previous prime is 406312195981. The next prime is 406312196041. The reversal of 406312195994 is 499591213604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 398207695369 + 8104500625 = 631037^2 + 90025^2 .

It is a super-2 number, since 2×406312195994² (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 as a sum of consecutive naturals, namely, 101578048997 + ... + 101578049000.

Almost surely, 2^406312195994 is an apocalyptic number.

406312195994 is a deficient number, since it is larger than the sum of its proper divisors (203156098000).

406312195994 is a wasteful number, since it uses less digits than its factorization.

406312195994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203156097999.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 406312195994 in words is "four hundred six billion, three hundred twelve million, one hundred ninety-five thousand, nine hundred ninety-four".