19434250250 has 32 divisors (see below), whose sum is σ = 36642715200. Its totient is φ = 7717760400.

The previous prime is 19434250243. The next prime is 19434250267. The reversal of 19434250250 is 5205243491.

It is a self number, because there is not a number n which added to its sum of digits gives 19434250250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244880 + ... + 314379.

It is an arithmetic number, because the mean of its divisors is an integer number (1145084850).

Almost surely, 2^19434250250 is an apocalyptic number.

19434250250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19434250250 is a deficient number, since it is larger than the sum of its proper divisors (17208464950).

19434250250 is a wasteful number, since it uses less digits than its factorization.

19434250250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559415 (or 559405 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 19434250250 in words is "nineteen billion, four hundred thirty-four million, two hundred fifty thousand, two hundred fifty".