631346645411 has 4 divisors (see below), whose sum is σ = 631348431000. Its totient is φ = 631344859824.

The previous prime is 631346645407. The next prime is 631346645467. The reversal of 631346645411 is 114546643136.

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

It is a cyclic number.

It is not a de Polignac number, because 631346645411 - 2² = 631346645407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631346645401) 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, 164261 + ... + 1135638.

It is an arithmetic number, because the mean of its divisors is an integer number (157837107750).

Almost surely, 2^631346645411 is an apocalyptic number.

631346645411 is a deficient number, since it is larger than the sum of its proper divisors (1785589).

631346645411 is a wasteful number, since it uses less digits than its factorization.

631346645411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785588.

The product of its digits is 622080, while the sum is 44.

The spelling of 631346645411 in words is "six hundred thirty-one billion, three hundred forty-six million, six hundred forty-five thousand, four hundred eleven".