631742445102 has 16 divisors (see below), whose sum is σ = 1271852341632. Its totient is φ = 209186239800.

The previous prime is 631742445077. The next prime is 631742445121. The reversal of 631742445102 is 201544247136.

It is a congruent number.

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, 348642828 + ... + 348644639.

It is an arithmetic number, because the mean of its divisors is an integer number (79490771352).

Almost surely, 2^631742445102 is an apocalyptic number.

631742445102 is an abundant number, since it is smaller than the sum of its proper divisors (640109896530).

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

631742445102 is a wasteful number, since it uses less digits than its factorization.

631742445102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697287623.

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 631742445102 in words is "six hundred thirty-one billion, seven hundred forty-two million, four hundred forty-five thousand, one hundred two".