27768862343 has 8 divisors (see below), whose sum is σ = 29910921216. Its totient is φ = 25704696600.

The previous prime is 27768862309. The next prime is 27768862357. The reversal of 27768862343 is 34326886772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27768862343 - 2²⁶ = 27701753479 is a prime.

It is a super-2 number, since 2×27768862343² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27768862393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19472543 + ... + 19473968.

It is an arithmetic number, because the mean of its divisors is an integer number (3738865152).

Almost surely, 2^27768862343 is an apocalyptic number.

27768862343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

27768862343 is a deficient number, since it is larger than the sum of its proper divisors (2142058873).

27768862343 is a wasteful number, since it uses less digits than its factorization.

27768862343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38946565.

The product of its digits is 16257024, while the sum is 56.

The spelling of 27768862343 in words is "twenty-seven billion, seven hundred sixty-eight million, eight hundred sixty-two thousand, three hundred forty-three".