6091948787905 has 4 divisors (see below), whose sum is σ = 7310338545492. Its totient is φ = 4873559030320.

The previous prime is 6091948787891. The next prime is 6091948787909. The reversal of 6091948787905 is 5097878491906.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4608544149504 + 1483404638401 = 2146752^2 + 1217951^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6091948787905 is a prime.

It is a super-2 number, since 2×6091948787905² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6091948787909) 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 3 ways as a sum of consecutive naturals, for example, 609194878786 + ... + 609194878795.

It is an arithmetic number, because the mean of its divisors is an integer number (1827584636373).

Almost surely, 2^{6091948787905} is an apocalyptic number.

It is an amenable number.

6091948787905 is a deficient number, since it is larger than the sum of its proper divisors (1218389757587).

6091948787905 is a wasteful number, since it uses less digits than its factorization.

6091948787905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218389757586.

The product of its (nonzero) digits is 274337280, while the sum is 73.

The spelling of 6091948787905 in words is "six trillion, ninety-one billion, nine hundred forty-eight million, seven hundred eighty-seven thousand, nine hundred five".