19357681343 has 16 divisors (see below), whose sum is σ = 25990734336. Its totient is φ = 13923606240.

The previous prime is 19357681333. The next prime is 19357681373. The reversal of 19357681343 is 34318675391.

It is a cyclic number.

It is not a de Polignac number, because 19357681343 - 2⁸ = 19357681087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19357681291 and 19357681300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19357681333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9668171 + ... + 9670172.

It is an arithmetic number, because the mean of its divisors is an integer number (1624420896).

Almost surely, 2^19357681343 is an apocalyptic number.

19357681343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

19357681343 is a deficient number, since it is larger than the sum of its proper divisors (6633052993).

19357681343 is a wasteful number, since it uses less digits than its factorization.

19357681343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19338374.

The product of its digits is 1632960, while the sum is 50.

The spelling of 19357681343 in words is "nineteen billion, three hundred fifty-seven million, six hundred eighty-one thousand, three hundred forty-three".