19850731006 has 16 divisors (see below), whose sum is σ = 30192848928. Its totient is φ = 9786528000.

The previous prime is 19850730997. The next prime is 19850731111. The reversal of 19850731006 is 60013705891.

It is a self number, because there is not a number n which added to its sum of digits gives 19850731006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531031 + ... + 567181.

It is an arithmetic number, because the mean of its divisors is an integer number (1887053058).

Almost surely, 2^19850731006 is an apocalyptic number.

19850731006 is a deficient number, since it is larger than the sum of its proper divisors (10342117922).

19850731006 is a wasteful number, since it uses less digits than its factorization.

19850731006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39987.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 19850731006 in words is "nineteen billion, eight hundred fifty million, seven hundred thirty-one thousand, six".