7704400992 has 24 divisors (see below), whose sum is σ = 20224052856. Its totient is φ = 2568133632.

The previous prime is 7704400987. The next prime is 7704400999. The reversal of 7704400992 is 2990044077.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7704400999) 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 3 ways as a sum of consecutive naturals, for example, 40126993 + ... + 40127184.

It is an arithmetic number, because the mean of its divisors is an integer number (842668869).

Almost surely, 2^7704400992 is an apocalyptic number.

It is an amenable number.

7704400992 is an abundant number, since it is smaller than the sum of its proper divisors (12519651864).

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

7704400992 is a wasteful number, since it uses less digits than its factorization.

7704400992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80254190 (or 80254182 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 7704400992 is about 87774.7172709773. The cubic root of 7704400992 is about 1975.0569650396.

The spelling of 7704400992 in words is "seven billion, seven hundred four million, four hundred thousand, nine hundred ninety-two".