19396010550 has 144 divisors (see below), whose sum is σ = 57885647760. Its totient is φ = 4280451840.

The previous prime is 19396010533. The next prime is 19396010573. The reversal of 19396010550 is 5501069391.

It is a super-2 number, since 2×19396010550² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19396010499 and 19396010508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 167652 + ... + 258648.

It is an arithmetic number, because the mean of its divisors is an integer number (401983665).

Almost surely, 2^19396010550 is an apocalyptic number.

19396010550 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 19396010550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28942823880).

19396010550 is an abundant number, since it is smaller than the sum of its proper divisors (38489637210).

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

19396010550 is a wasteful number, since it uses less digits than its factorization.

19396010550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91055 (or 91043 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 39.

The spelling of 19396010550 in words is "nineteen billion, three hundred ninety-six million, ten thousand, five hundred fifty".