631421442006 has 64 divisors (see below), whose sum is σ = 1340353413120. Its totient is φ = 197740841760.

The previous prime is 631421441969. The next prime is 631421442007. The reversal of 631421442006 is 600244124136.

It is a happy number.

631421442006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631421442007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39183891 + ... + 39200001.

It is an arithmetic number, because the mean of its divisors is an integer number (20943022080).

Almost surely, 2^631421442006 is an apocalyptic number.

631421442006 is an abundant number, since it is smaller than the sum of its proper divisors (708931971114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631421442006 is a wasteful number, since it uses less digits than its factorization.

631421442006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18969.

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 631421442006 in words is "six hundred thirty-one billion, four hundred twenty-one million, four hundred forty-two thousand, six".