6091391065 has 8 divisors (see below), whose sum is σ = 7342449408. Its totient is φ = 4851259440.

The previous prime is 6091391039. The next prime is 6091391077. The reversal of 6091391065 is 5601931906.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-6091391065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2730451 + ... + 2732680.

It is an arithmetic number, because the mean of its divisors is an integer number (917806176).

Almost surely, 2^6091391065 is an apocalyptic number.

It is an amenable number.

6091391065 is a deficient number, since it is larger than the sum of its proper divisors (1251058343).

6091391065 is a wasteful number, since it uses less digits than its factorization.

6091391065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5463359.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 6091391065 is about 78047.3642412093. The cubic root of 6091391065 is about 1826.3001746485.

The spelling of 6091391065 in words is "six billion, ninety-one million, three hundred ninety-one thousand, sixty-five".