1913908063 has 8 divisors (see below), whose sum is σ = 1921936016. Its totient is φ = 1905897600.

The previous prime is 1913908049. The next prime is 1913908091. The reversal of 1913908063 is 3608093191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1913908063 - 2⁹ = 1913907551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913908363) 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, 243373 + ... + 251113.

It is an arithmetic number, because the mean of its divisors is an integer number (240242002).

Almost surely, 2^1913908063 is an apocalyptic number.

1913908063 is a deficient number, since it is larger than the sum of its proper divisors (8027953).

1913908063 is an equidigital number, since it uses as much as digits as its factorization.

1913908063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8745.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 1913908063 is about 43748.2349701105. The cubic root of 1913908063 is about 1241.5770912744.

The spelling of 1913908063 in words is "one billion, nine hundred thirteen million, nine hundred eight thousand, sixty-three".