18143827377 has 16 divisors (see below), whose sum is σ = 27423869760. Its totient is φ = 10577777472.

The previous prime is 18143827363. The next prime is 18143827411. The reversal of 18143827377 is 77372834181.

It is not a de Polignac number, because 18143827377 - 2¹⁶ = 18143761841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18143827327) 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, 12242058 + ... + 12243539.

It is an arithmetic number, because the mean of its divisors is an integer number (1713991860).

Almost surely, 2^18143827377 is an apocalyptic number.

It is an amenable number.

18143827377 is a deficient number, since it is larger than the sum of its proper divisors (9280042383).

18143827377 is a wasteful number, since it uses less digits than its factorization.

18143827377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24485632.

The product of its digits is 1580544, while the sum is 51.

The spelling of 18143827377 in words is "eighteen billion, one hundred forty-three million, eight hundred twenty-seven thousand, three hundred seventy-seven".