1934855949691 has 32 divisors (see below), whose sum is σ = 2298542400000. Its totient is φ = 1593551232000.

The previous prime is 1934855949683. The next prime is 1934855949731. The reversal of 1934855949691 is 1969495584391.

It is not a de Polignac number, because 1934855949691 - 2³ = 1934855949683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1934855949391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63625096 + ... + 63655498.

It is an arithmetic number, because the mean of its divisors is an integer number (71829450000).

Almost surely, 2^{1934855949691} is an apocalyptic number.

1934855949691 is a deficient number, since it is larger than the sum of its proper divisors (363686450309).

1934855949691 is a wasteful number, since it uses less digits than its factorization.

1934855949691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31939.

The product of its digits is 377913600, while the sum is 73.

The spelling of 1934855949691 in words is "one trillion, nine hundred thirty-four billion, eight hundred fifty-five million, nine hundred forty-nine thousand, six hundred ninety-one".