2168242377 has 32 divisors (see below), whose sum is σ = 3379855104. Its totient is φ = 1210809600.

The previous prime is 2168242369. The next prime is 2168242379. The reversal of 2168242377 is 7732428612.

It is a happy number.

It is not a de Polignac number, because 2168242377 - 2³ = 2168242369 is a prime.

It is a super-2 number, since 2×2168242377² = 9402550010837220258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2168242379) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195727 + ... + 206507.

It is an arithmetic number, because the mean of its divisors is an integer number (105620472).

Almost surely, 2^2168242377 is an apocalyptic number.

It is an amenable number.

2168242377 is a deficient number, since it is larger than the sum of its proper divisors (1211612727).

2168242377 is a wasteful number, since it uses less digits than its factorization.

2168242377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009.

The product of its digits is 225792, while the sum is 42.

The square root of 2168242377 is about 46564.3895804509. The cubic root of 2168242377 is about 1294.3029550797.

The spelling of 2168242377 in words is "two billion, one hundred sixty-eight million, two hundred forty-two thousand, three hundred seventy-seven".