630240690441 has 4 divisors (see below), whose sum is σ = 840320920592. Its totient is φ = 420160460292.

The previous prime is 630240690433. The next prime is 630240690503. The reversal of 630240690441 is 144096042036.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 630240690441 - 2³ = 630240690433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 630240690441.

It is not an unprimeable number, because it can be changed into a prime (630240690041) 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 in 3 ways as a sum of consecutive naturals, for example, 105040115071 + ... + 105040115076.

It is an arithmetic number, because the mean of its divisors is an integer number (210080230148).

Almost surely, 2^630240690441 is an apocalyptic number.

It is an amenable number.

630240690441 is a deficient number, since it is larger than the sum of its proper divisors (210080230151).

630240690441 is a wasteful number, since it uses less digits than its factorization.

630240690441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210080230150.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 630240690441 in words is "six hundred thirty billion, two hundred forty million, six hundred ninety thousand, four hundred forty-one".