2091745992 has 64 divisors (see below), whose sum is σ = 5980677120. Its totient is φ = 597215808.

The previous prime is 2091745961. The next prime is 2091746023. The reversal of 2091745992 is 2995471902.

It is an interprime number because it is at equal distance from previous prime (2091745961) and next prime (2091746023).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289933 + ... + 297059.

It is an arithmetic number, because the mean of its divisors is an integer number (93448080).

Almost surely, 2^2091745992 is an apocalyptic number.

It is an amenable number.

2091745992 is an abundant number, since it is smaller than the sum of its proper divisors (3888931128).

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

2091745992 is a wasteful number, since it uses less digits than its factorization.

2091745992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8890 (or 8886 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 2091745992 is about 45735.6096712398. The cubic root of 2091745992 is about 1278.8991984375.

The spelling of 2091745992 in words is "two billion, ninety-one million, seven hundred forty-five thousand, nine hundred ninety-two".