1917932057349 has 64 divisors (see below), whose sum is σ = 3207092797440. Its totient is φ = 990443805120.

The previous prime is 1917932057323. The next prime is 1917932057381. The reversal of 1917932057349 is 9437502397191.

It is not a de Polignac number, because 1917932057349 - 2⁵ = 1917932057317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1917932057292 and 1917932057301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1917932057309) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 182881384 + ... + 182891870.

It is an arithmetic number, because the mean of its divisors is an integer number (50110824960).

Almost surely, 2^{1917932057349} is an apocalyptic number.

It is an amenable number.

1917932057349 is a deficient number, since it is larger than the sum of its proper divisors (1289160740091).

1917932057349 is a wasteful number, since it uses less digits than its factorization.

1917932057349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15110.

The product of its (nonzero) digits is 12859560, while the sum is 60.

The spelling of 1917932057349 in words is "one trillion, nine hundred seventeen billion, nine hundred thirty-two million, fifty-seven thousand, three hundred forty-nine".