2318120864 has 12 divisors (see below), whose sum is σ = 4563800514. Its totient is φ = 1159060416.

The previous prime is 2318120863. The next prime is 2318120869. The reversal of 2318120864 is 4680218132.

It can be written as a sum of positive squares in only one way, i.e., 1604803600 + 713317264 = 40060^2 + 26708^2 .

It is a super-2 number, since 2×2318120864² = 10747368680224212992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2318120863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36220607 + ... + 36220670.

Almost surely, 2^2318120864 is an apocalyptic number.

It is an amenable number.

2318120864 is a deficient number, since it is larger than the sum of its proper divisors (2245679650).

2318120864 is an equidigital number, since it uses as much as digits as its factorization.

2318120864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72441287 (or 72441279 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 2318120864 is about 48146.8676447388. The cubic root of 2318120864 is about 1323.4636735137.

Adding to 2318120864 its reverse (4680218132), we get a palindrome (6998338996).

The spelling of 2318120864 in words is "two billion, three hundred eighteen million, one hundred twenty thousand, eight hundred sixty-four".