1791106065 has 72 divisors (see below), whose sum is σ = 3728095488. Its totient is φ = 792348480.

The previous prime is 1791106061. The next prime is 1791106069. The reversal of 1791106065 is 5606011971.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1791106061) and next prime (1791106069).

It is not a de Polignac number, because 1791106065 - 2² = 1791106061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1791106061) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 55254 + ... + 81456.

It is an arithmetic number, because the mean of its divisors is an integer number (51779104).

Almost surely, 2^1791106065 is an apocalyptic number.

1791106065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1791106065 is an abundant number, since it is smaller than the sum of its proper divisors (1936989423).

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

1791106065 is a wasteful number, since it uses less digits than its factorization.

1791106065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26259 (or 26249 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 1791106065 is about 42321.4610451955. The cubic root of 1791106065 is about 1214.4335824509.

The spelling of 1791106065 in words is "one billion, seven hundred ninety-one million, one hundred six thousand, sixty-five".