7768949164 has 6 divisors (see below), whose sum is σ = 13595661044. Its totient is φ = 3884474580.

The previous prime is 7768949161. The next prime is 7768949179. The reversal of 7768949164 is 4619498677.

It is a super-2 number, since 2×7768949164² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7768949161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971118642 + ... + 971118649.

Almost surely, 2^7768949164 is an apocalyptic number.

It is an amenable number.

7768949164 is a deficient number, since it is larger than the sum of its proper divisors (5826711880).

7768949164 is a wasteful number, since it uses less digits than its factorization.

7768949164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942237295 (or 1942237293 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 61.

The square root of 7768949164 is about 88141.6426214080. The cubic root of 7768949164 is about 1980.5573681691.

The spelling of 7768949164 in words is "seven billion, seven hundred sixty-eight million, nine hundred forty-nine thousand, one hundred sixty-four".