1917342513 has 12 divisors (see below), whose sum is σ = 2783414400. Its totient is φ = 1271803896.

The previous prime is 1917342503. The next prime is 1917342521. The reversal of 1917342513 is 3152437191.

It is not a de Polignac number, because 1917342513 - 2⁹ = 1917342001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1917342503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 533481 + ... + 537062.

It is an arithmetic number, because the mean of its divisors is an integer number (231951200).

Almost surely, 2^1917342513 is an apocalyptic number.

It is an amenable number.

1917342513 is a deficient number, since it is larger than the sum of its proper divisors (866071887).

1917342513 is a wasteful number, since it uses less digits than its factorization.

1917342513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070748 (or 1070745 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 1917342513 is about 43787.4698172891. The cubic root of 1917342513 is about 1242.3193049755.

The spelling of 1917342513 in words is "one billion, nine hundred seventeen million, three hundred forty-two thousand, five hundred thirteen".