2729144866 has 24 divisors (see below), whose sum is σ = 4765400640. Its totient is φ = 1168817832.

The previous prime is 2729144863. The next prime is 2729144867. The reversal of 2729144866 is 6684419272.

It is a super-2 number, since 2×2729144866² = 14896463399228315912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (2729144863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143851 + ... + 161713.

It is an arithmetic number, because the mean of its divisors is an integer number (198558360).

Almost surely, 2^2729144866 is an apocalyptic number.

2729144866 is a deficient number, since it is larger than the sum of its proper divisors (2036255774).

2729144866 is a wasteful number, since it uses less digits than its factorization.

2729144866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19438 (or 19431 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 2729144866 is about 52241.2180753856. The cubic root of 2729144866 is about 1397.4690438962.

The spelling of 2729144866 in words is "two billion, seven hundred twenty-nine million, one hundred forty-four thousand, eight hundred sixty-six".