1913506793 has 8 divisors (see below), whose sum is σ = 2089427520. Its totient is φ = 1737913680.

The previous prime is 1913506789. The next prime is 1913506807. The reversal of 1913506793 is 3976053191.

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 1913506793 - 2² = 1913506789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1913500793) 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, 69605 + ... + 93122.

It is an arithmetic number, because the mean of its divisors is an integer number (261178440).

Almost surely, 2^1913506793 is an apocalyptic number.

It is an amenable number.

1913506793 is a deficient number, since it is larger than the sum of its proper divisors (175920727).

1913506793 is a wasteful number, since it uses less digits than its factorization.

1913506793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163807.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 1913506793 is about 43743.6486018256. The cubic root of 1913506793 is about 1241.4903155177.

The spelling of 1913506793 in words is "one billion, nine hundred thirteen million, five hundred six thousand, seven hundred ninety-three".