19912250126 has 8 divisors (see below), whose sum is σ = 29870162640. Its totient is φ = 9955529248.

The previous prime is 19912250089. The next prime is 19912250131. The reversal of 19912250126 is 62105221991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 19912250126.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254891 + ... + 323718.

It is an arithmetic number, because the mean of its divisors is an integer number (3733770330).

Almost surely, 2^19912250126 is an apocalyptic number.

19912250126 is a deficient number, since it is larger than the sum of its proper divisors (9957912514).

19912250126 is a wasteful number, since it uses less digits than its factorization.

19912250126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595818.

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 19912250126 in words is "nineteen billion, nine hundred twelve million, two hundred fifty thousand, one hundred twenty-six".