6405149734191 has 64 divisors (see below), whose sum is σ = 10550796963840. Its totient is φ = 3813718930560.

The previous prime is 6405149734189. The next prime is 6405149734273. The reversal of 6405149734191 is 1914379415046.

6405149734191 is a `hidden beast` number, since 6 + 4 + 0 + 514 + 9 + 7 + 34 + 1 + 91 = 666.

It is not a de Polignac number, because 6405149734191 - 2¹ = 6405149734189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6405149734591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56927596 + ... + 57039998.

It is an arithmetic number, because the mean of its divisors is an integer number (164856202560).

Almost surely, 2^{6405149734191} is an apocalyptic number.

6405149734191 is a deficient number, since it is larger than the sum of its proper divisors (4145647229649).

6405149734191 is a wasteful number, since it uses less digits than its factorization.

6405149734191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117693 (or 117687 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 6405149734191 in words is "six trillion, four hundred five billion, one hundred forty-nine million, seven hundred thirty-four thousand, one hundred ninety-one".