19517413340 has 24 divisors (see below), whose sum is σ = 41309302272. Its totient is φ = 7745492160.

The previous prime is 19517413303. The next prime is 19517413351. The reversal of 19517413340 is 4331471591.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19517413294 and 19517413303.

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 7 ways as a sum of consecutive naturals, for example, 3839471 + ... + 3844550.

It is an arithmetic number, because the mean of its divisors is an integer number (1721220928).

Almost surely, 2^19517413340 is an apocalyptic number.

19517413340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19517413340 is an abundant number, since it is smaller than the sum of its proper divisors (21791888932).

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

19517413340 is a wasteful number, since it uses less digits than its factorization.

19517413340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7684157 (or 7684155 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 19517413340 in words is "nineteen billion, five hundred seventeen million, four hundred thirteen thousand, three hundred forty".