630143440836 has 96 divisors (see below), whose sum is σ = 1816176579840. Its totient is φ = 165591627264.

The previous prime is 630143440831. The next prime is 630143440837. The reversal of 630143440836 is 638044341036.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (630143440831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 739131 + ... + 1344098.

It is an arithmetic number, because the mean of its divisors is an integer number (18918506040).

Almost surely, 2^630143440836 is an apocalyptic number.

It is an amenable number.

630143440836 is an abundant number, since it is smaller than the sum of its proper divisors (1186033139004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630143440836 is a wasteful number, since it uses less digits than its factorization.

630143440836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083533 (or 2083531 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 630143440836 in words is "six hundred thirty billion, one hundred forty-three million, four hundred forty thousand, eight hundred thirty-six".