19434296250 has 320 divisors, whose sum is σ = 56411942400. Its totient is φ = 4953312000.

The previous prime is 19434296237. The next prime is 19434296279. The reversal of 19434296250 is 5269243491.

19434296250 is a `hidden beast` number, since 19 + 4 + 3 + 4 + 2 + 9 + 625 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 19434296196 and 19434296205.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 98651152 + ... + 98651348.

It is an arithmetic number, because the mean of its divisors is an integer number (176287320).

Almost surely, 2^19434296250 is an apocalyptic number.

19434296250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19434296250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28205971200).

19434296250 is an abundant number, since it is smaller than the sum of its proper divisors (36977646150).

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

19434296250 is a wasteful number, since it uses less digits than its factorization.

19434296250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 19434296250 in words is "nineteen billion, four hundred thirty-four million, two hundred ninety-six thousand, two hundred fifty".