7749668730 has 16 divisors (see below), whose sum is σ = 18599205024. Its totient is φ = 2066578320.

The previous prime is 7749668713. The next prime is 7749668791. The reversal of 7749668730 is 378669477.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129161116 + ... + 129161175.

It is an arithmetic number, because the mean of its divisors is an integer number (1162450314).

Almost surely, 2^7749668730 is an apocalyptic number.

7749668730 is an abundant number, since it is smaller than the sum of its proper divisors (10849536294).

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

7749668730 is a wasteful number, since it uses less digits than its factorization.

7749668730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258322301.

The product of its (nonzero) digits is 10668672, while the sum is 57.

The square root of 7749668730 is about 88032.2028010205. The cubic root of 7749668730 is about 1978.9176080782.

The spelling of 7749668730 in words is "seven billion, seven hundred forty-nine million, six hundred sixty-eight thousand, seven hundred thirty".