245631128250 has 64 divisors (see below), whose sum is σ = 614324880000. Its totient is φ = 65370268800.

The previous prime is 245631128219. The next prime is 245631128251. The reversal of 245631128250 is 52821136542.

It is a junction number, because it is equal to n+sod(n) for n = 245631128199 and 245631128208.

It is not an unprimeable number, because it can be changed into a prime (245631128251) 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 31 ways as a sum of consecutive naturals, for example, 46086 + ... + 702414.

It is an arithmetic number, because the mean of its divisors is an integer number (9598826250).

Almost surely, 2^245631128250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245631128250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307162440000).

245631128250 is an abundant number, since it is smaller than the sum of its proper divisors (368693751750).

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

245631128250 is a wasteful number, since it uses less digits than its factorization.

245631128250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656848 (or 656838 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 245631128250 in words is "two hundred forty-five billion, six hundred thirty-one million, one hundred twenty-eight thousand, two hundred fifty".