6149321305491 has 32 divisors (see below), whose sum is σ = 10189166740480. Its totient is φ = 3212106793344.

The previous prime is 6149321305349. The next prime is 6149321305513. The reversal of 6149321305491 is 1945031239416.

It is a happy number.

It is not a de Polignac number, because 6149321305491 - 2¹¹ = 6149321303443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6149321305491.

It is not an unprimeable number, because it can be changed into a prime (6149321300491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109316476 + ... + 109372713.

It is an arithmetic number, because the mean of its divisors is an integer number (318411460640).

Almost surely, 2^{6149321305491} is an apocalyptic number.

6149321305491 is a deficient number, since it is larger than the sum of its proper divisors (4039845434989).

6149321305491 is a wasteful number, since it uses less digits than its factorization.

6149321305491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218689315.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 6149321305491 in words is "six trillion, one hundred forty-nine billion, three hundred twenty-one million, three hundred five thousand, four hundred ninety-one".