7663863504 has 80 divisors (see below), whose sum is σ = 21633329664. Its totient is φ = 2318601600.

The previous prime is 7663863491. The next prime is 7663863563. The reversal of 7663863504 is 4053683667.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321667 + ... + 344669.

Almost surely, 2^7663863504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7663863504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10816664832).

7663863504 is an abundant number, since it is smaller than the sum of its proper divisors (13969466160).

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

7663863504 is a wasteful number, since it uses less digits than its factorization.

7663863504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23656 (or 23650 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The square root of 7663863504 is about 87543.4949268077. The cubic root of 7663863504 is about 1971.5868842650.

The spelling of 7663863504 in words is "seven billion, six hundred sixty-three million, eight hundred sixty-three thousand, five hundred four".