7769494900 has 18 divisors (see below), whose sum is σ = 16859804150. Its totient is φ = 3107797920.

The previous prime is 7769494891. The next prime is 7769494903. The reversal of 7769494900 is 94949677.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1166632336 + 6602862564 = 34156^2 + 81258^2 .

It is a super-2 number, since 2×7769494900² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7769494903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38847375 + ... + 38847574.

Almost surely, 2^7769494900 is an apocalyptic number.

It is an amenable number.

7769494900 is an abundant number, since it is smaller than the sum of its proper divisors (9090309250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7769494900 is a wasteful number, since it uses less digits than its factorization.

7769494900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77694963 (or 77694956 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 55.

The square root of 7769494900 is about 88144.7383568639. The cubic root of 7769494900 is about 1980.6037423580.

The spelling of 7769494900 in words is "seven billion, seven hundred sixty-nine million, four hundred ninety-four thousand, nine hundred".