2691943356 has 12 divisors (see below), whose sum is σ = 6281201192. Its totient is φ = 897314448.

The previous prime is 2691943337. The next prime is 2691943403. The reversal of 2691943356 is 6533491962.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112164295 + ... + 112164318.

Almost surely, 2^2691943356 is an apocalyptic number.

It is an amenable number.

2691943356 is an abundant number, since it is smaller than the sum of its proper divisors (3589257836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2691943356 is a wasteful number, since it uses less digits than its factorization.

2691943356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224328620 (or 224328618 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 48.

The square root of 2691943356 is about 51883.9412149848. The cubic root of 2691943356 is about 1391.0902468958.

The spelling of 2691943356 in words is "two billion, six hundred ninety-one million, nine hundred forty-three thousand, three hundred fifty-six".