747680706442 has 16 divisors (see below), whose sum is σ = 1187588162952. Its totient is φ = 351821514240.

The previous prime is 747680706433. The next prime is 747680706449. The reversal of 747680706442 is 244607086747.

It can be written as a sum of positive squares in 4 ways, for example, as 649731111481 + 97949594961 = 806059^2 + 312969^2 .

It is not an unprimeable number, because it can be changed into a prime (747680706449) 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, 449109 + ... + 1302712.

Almost surely, 2^747680706442 is an apocalyptic number.

747680706442 is a deficient number, since it is larger than the sum of its proper divisors (439907456510).

747680706442 is a wasteful number, since it uses less digits than its factorization.

747680706442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764393.

The product of its (nonzero) digits is 12644352, while the sum is 55.

The spelling of 747680706442 in words is "seven hundred forty-seven billion, six hundred eighty million, seven hundred six thousand, four hundred forty-two".