1913706468 has 18 divisors (see below), whose sum is σ = 4837424774. Its totient is φ = 637902144.

The previous prime is 1913706437. The next prime is 1913706469. The reversal of 1913706468 is 8646073191.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1893294144 + 20412324 = 43512^2 + 4518^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (1913706469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26579221 + ... + 26579292.

Almost surely, 2^1913706468 is an apocalyptic number.

1913706468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1913706468 is an abundant number, since it is smaller than the sum of its proper divisors (2923718306).

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

1913706468 is a wasteful number, since it uses less digits than its factorization.

1913706468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53158523 (or 53158518 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1913706468 is about 43745.9308736253. The cubic root of 1913706468 is about 1241.5334973096.

The spelling of 1913706468 in words is "one billion, nine hundred thirteen million, seven hundred six thousand, four hundred sixty-eight".