2091596994 has 12 divisors (see below), whose sum is σ = 4531793526. Its totient is φ = 697198992.

The previous prime is 2091596993. The next prime is 2091596999. The reversal of 2091596994 is 4996951902.

It can be written as a sum of positive squares in only one way, i.e., 1956735225 + 134861769 = 44235^2 + 11613^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2091596994.

It is not an unprimeable number, because it can be changed into a prime (2091596993) 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 5 ways as a sum of consecutive naturals, for example, 58099899 + ... + 58099934.

Almost surely, 2^2091596994 is an apocalyptic number.

2091596994 is an abundant number, since it is smaller than the sum of its proper divisors (2440196532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2091596994 is a wasteful number, since it uses less digits than its factorization.

2091596994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116199841 (or 116199838 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The square root of 2091596994 is about 45733.9807364284. The cubic root of 2091596994 is about 1278.8688317887.

It can be divided in two parts, 209159 and 6994, that added together give a triangular number (216153 = T₆₅₇).

The spelling of 2091596994 in words is "two billion, ninety-one million, five hundred ninety-six thousand, nine hundred ninety-four".