2690043174391 has 2 divisors, whose sum is σ = 2690043174392. Its totient is φ = 2690043174390.

The previous prime is 2690043174383. The next prime is 2690043174409. The reversal of 2690043174391 is 1934713400962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2690043174391 - 2³ = 2690043174383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2690043174491) 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 as a sum of consecutive naturals, namely, 1345021587195 + 1345021587196.

It is an arithmetic number, because the mean of its divisors is an integer number (1345021587196).

Almost surely, 2^{2690043174391} is an apocalyptic number.

2690043174391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2690043174391 is an equidigital number, since it uses as much as digits as its factorization.

2690043174391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 2690043174391 in words is "two trillion, six hundred ninety billion, forty-three million, one hundred seventy-four thousand, three hundred ninety-one".