630720187207 has 4 divisors (see below), whose sum is σ = 688058386056. Its totient is φ = 573381988360.

The previous prime is 630720187199. The next prime is 630720187231. The reversal of 630720187207 is 702781027036.

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 630720187207 - 2³ = 630720187199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630720187247) 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, 28669099408 + ... + 28669099429.

It is an arithmetic number, because the mean of its divisors is an integer number (172014596514).

Almost surely, 2^630720187207 is an apocalyptic number.

630720187207 is a deficient number, since it is larger than the sum of its proper divisors (57338198849).

630720187207 is a wasteful number, since it uses less digits than its factorization.

630720187207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57338198848.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 630720187207 in words is "six hundred thirty billion, seven hundred twenty million, one hundred eighty-seven thousand, two hundred seven".