6391151630091 has 8 divisors (see below), whose sum is σ = 9468372785360. Its totient is φ = 4260767753376.

The previous prime is 6391151630057. The next prime is 6391151630093. The reversal of 6391151630091 is 1900361511936.

6391151630091 is a `hidden beast` number, since 6 + 3 + 9 + 1 + 1 + 5 + 1 + 630 + 0 + 9 + 1 = 666.

It is not a de Polignac number, because 6391151630091 - 2¹⁰ = 6391151629067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6391151630093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118354659790 + ... + 118354659843.

It is an arithmetic number, because the mean of its divisors is an integer number (1183546598170).

Almost surely, 2^{6391151630091} is an apocalyptic number.

6391151630091 is a deficient number, since it is larger than the sum of its proper divisors (3077221155269).

6391151630091 is a wasteful number, since it uses less digits than its factorization.

6391151630091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236709319642 (or 236709319636 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The spelling of 6391151630091 in words is "six trillion, three hundred ninety-one billion, one hundred fifty-one million, six hundred thirty thousand, ninety-one".