1949410041391 has 4 divisors (see below), whose sum is σ = 1949414185800. Its totient is φ = 1949405896984.

The previous prime is 1949410041389. The next prime is 1949410041413. The reversal of 1949410041391 is 1931400149491.

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

It is a cyclic number.

It is not a de Polignac number, because 1949410041391 - 2¹ = 1949410041389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949410041091) 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 3 ways as a sum of consecutive naturals, for example, 1260721 + ... + 2342698.

It is an arithmetic number, because the mean of its divisors is an integer number (487353546450).

Almost surely, 2^{1949410041391} is an apocalyptic number.

1949410041391 is a deficient number, since it is larger than the sum of its proper divisors (4144409).

1949410041391 is an equidigital number, since it uses as much as digits as its factorization.

1949410041391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4144408.

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 1949410041391 in words is "one trillion, nine hundred forty-nine billion, four hundred ten million, forty-one thousand, three hundred ninety-one".