670240740723 has 4 divisors (see below), whose sum is σ = 893654320968. Its totient is φ = 446827160480.

The previous prime is 670240740709. The next prime is 670240740751. The reversal of 670240740723 is 327047042076.

670240740723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 670240740723 - 2⁸ = 670240740467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670240740773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111706790118 + ... + 111706790123.

It is an arithmetic number, because the mean of its divisors is an integer number (223413580242).

Almost surely, 2^670240740723 is an apocalyptic number.

670240740723 is a deficient number, since it is larger than the sum of its proper divisors (223413580245).

670240740723 is a wasteful number, since it uses less digits than its factorization.

670240740723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223413580244.

The product of its (nonzero) digits is 395136, while the sum is 42.

Adding to 670240740723 its reverse (327047042076), we get a palindrome (997287782799).

The spelling of 670240740723 in words is "six hundred seventy billion, two hundred forty million, seven hundred forty thousand, seven hundred twenty-three".