245388846920 has 32 divisors (see below), whose sum is σ = 630999892800. Its totient is φ = 84133318848.

The previous prime is 245388846881. The next prime is 245388846943. The reversal of 245388846920 is 29648883542.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 245388846920.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438194090 + ... + 438194649.

It is an arithmetic number, because the mean of its divisors is an integer number (19718746650).

Almost surely, 2^245388846920 is an apocalyptic number.

245388846920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245388846920 is an abundant number, since it is smaller than the sum of its proper divisors (385611045880).

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

245388846920 is a wasteful number, since it uses less digits than its factorization.

245388846920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876388757 (or 876388753 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 59.

The spelling of 245388846920 in words is "two hundred forty-five billion, three hundred eighty-eight million, eight hundred forty-six thousand, nine hundred twenty".