19413698850 has 576 divisors, whose sum is σ = 68063643648. Its totient is φ = 3856896000.

The previous prime is 19413698827. The next prime is 19413698893. The reversal of 19413698850 is 5889631491.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 52047264 + ... + 52047636.

It is an arithmetic number, because the mean of its divisors is an integer number (118166048).

Almost surely, 2^19413698850 is an apocalyptic number.

19413698850 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 19413698850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34031821824).

19413698850 is an abundant number, since it is smaller than the sum of its proper divisors (48649944798).

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

19413698850 is a wasteful number, since it uses less digits than its factorization.

19413698850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 19413698850 in words is "nineteen billion, four hundred thirteen million, six hundred ninety-eight thousand, eight hundred fifty".