7707320643 has 8 divisors (see below), whose sum is σ = 11210648256. Its totient is φ = 4671103400.

The previous prime is 7707320641. The next prime is 7707320669. The reversal of 7707320643 is 3460237077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7707320643 - 2¹ = 7707320641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7707320641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116777553 + ... + 116777618.

It is an arithmetic number, because the mean of its divisors is an integer number (1401331032).

Almost surely, 2^7707320643 is an apocalyptic number.

7707320643 is a deficient number, since it is larger than the sum of its proper divisors (3503327613).

7707320643 is a wasteful number, since it uses less digits than its factorization.

7707320643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233555185.

The product of its (nonzero) digits is 148176, while the sum is 39.

The square root of 7707320643 is about 87791.3471989125. The cubic root of 7707320643 is about 1975.3064219748.

The spelling of 7707320643 in words is "seven billion, seven hundred seven million, three hundred twenty thousand, six hundred forty-three".