19807359468 has 24 divisors (see below), whose sum is σ = 49772339568. Its totient is φ = 6094572096.

The previous prime is 19807359461. The next prime is 19807359469. The reversal of 19807359468 is 86495370891.

It is not an unprimeable number, because it can be changed into a prime (19807359461) by changing a digit.

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, 63484971 + ... + 63485282.

It is an arithmetic number, because the mean of its divisors is an integer number (2073847482).

Almost surely, 2^19807359468 is an apocalyptic number.

It is an amenable number.

19807359468 is an abundant number, since it is smaller than the sum of its proper divisors (29964980100).

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

19807359468 is a wasteful number, since it uses less digits than its factorization.

19807359468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126970273 (or 126970271 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 19807359468 in words is "nineteen billion, eight hundred seven million, three hundred fifty-nine thousand, four hundred sixty-eight".