4723718642 has 4 divisors (see below), whose sum is σ = 7085577966. Its totient is φ = 2361859320.

The previous prime is 4723718641. The next prime is 4723718669. The reversal of 4723718642 is 2468173274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2847182881 + 1876535761 = 53359^2 + 43319^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4723718593 and 4723718602.

It is not an unprimeable number, because it can be changed into a prime (4723718641) 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 as a sum of consecutive naturals, namely, 1180929659 + ... + 1180929662.

Almost surely, 2^4723718642 is an apocalyptic number.

4723718642 is a deficient number, since it is larger than the sum of its proper divisors (2361859324).

4723718642 is a wasteful number, since it uses less digits than its factorization.

4723718642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361859323.

The product of its digits is 451584, while the sum is 44.

The square root of 4723718642 is about 68729.3142843721. The cubic root of 4723718642 is about 1677.8817125272.

The spelling of 4723718642 in words is "four billion, seven hundred twenty-three million, seven hundred eighteen thousand, six hundred forty-two".