27342778043 has 16 divisors (see below), whose sum is σ = 31792250880. Its totient is φ = 23029898400.

The previous prime is 27342778013. The next prime is 27342778061. The reversal of 27342778043 is 34087724372.

It is a cyclic number.

It is not a de Polignac number, because 27342778043 - 2¹⁰ = 27342777019 is a prime.

It is a super-2 number, since 2×27342778043² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27342778003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412838 + ... + 474468.

It is an arithmetic number, because the mean of its divisors is an integer number (1987015680).

Almost surely, 2^27342778043 is an apocalyptic number.

27342778043 is a deficient number, since it is larger than the sum of its proper divisors (4449472837).

27342778043 is a wasteful number, since it uses less digits than its factorization.

27342778043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62738.

The product of its (nonzero) digits is 1580544, while the sum is 47.

The spelling of 27342778043 in words is "twenty-seven billion, three hundred forty-two million, seven hundred seventy-eight thousand, forty-three".