1916709093 has 48 divisors (see below), whose sum is σ = 3102393840. Its totient is φ = 1132185600.

The previous prime is 1916709089. The next prime is 1916709101. The reversal of 1916709093 is 3909076191.

It can be written as a sum of positive squares in 8 ways, for example, as 1182190689 + 734518404 = 34383^2 + 27102^2 .

It is not a de Polignac number, because 1916709093 - 2² = 1916709089 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916709043) 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 47 ways as a sum of consecutive naturals, for example, 612573 + ... + 615693.

It is an arithmetic number, because the mean of its divisors is an integer number (64633205).

Almost surely, 2^1916709093 is an apocalyptic number.

1916709093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1916709093 is a deficient number, since it is larger than the sum of its proper divisors (1185684747).

1916709093 is a wasteful number, since it uses less digits than its factorization.

1916709093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350 (or 3347 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 45.

The square root of 1916709093 is about 43780.2363287363. The cubic root of 1916709093 is about 1242.1824842527.

The spelling of 1916709093 in words is "one billion, nine hundred sixteen million, seven hundred nine thousand, ninety-three".