630985651296 has 768 divisors, whose sum is σ = 2355772833792. Its totient is φ = 142514380800.

The previous prime is 630985651277. The next prime is 630985651301. The reversal of 630985651296 is 692156589036.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 148081806 + ... + 148086066.

It is an arithmetic number, because the mean of its divisors is an integer number (3067412544).

Almost surely, 2^630985651296 is an apocalyptic number.

630985651296 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630985651296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1177886416896).

630985651296 is an abundant number, since it is smaller than the sum of its proper divisors (1724787182496).

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

630985651296 is a wasteful number, since it uses less digits than its factorization.

630985651296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395 (or 4387 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 60.

The spelling of 630985651296 in words is "six hundred thirty billion, nine hundred eighty-five million, six hundred fifty-one thousand, two hundred ninety-six".