19243351064 has 32 divisors (see below), whose sum is σ = 41275872000. Its totient is φ = 8239126560.

The previous prime is 19243351063. The next prime is 19243351067. The reversal of 19243351064 is 46015334291.

It is a super-4 number, since 4×19243351064⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19243351063) 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 7 ways as a sum of consecutive naturals, for example, 108914 + ... + 224385.

It is an arithmetic number, because the mean of its divisors is an integer number (1289871000).

Almost surely, 2^19243351064 is an apocalyptic number.

19243351064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19243351064 is an abundant number, since it is smaller than the sum of its proper divisors (22032520936).

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

19243351064 is a wasteful number, since it uses less digits than its factorization.

19243351064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334343 (or 334339 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 19243351064 in words is "nineteen billion, two hundred forty-three million, three hundred fifty-one thousand, sixty-four".