245779344820 has 48 divisors (see below), whose sum is σ = 523520222400. Its totient is φ = 96906951936.

The previous prime is 245779344817. The next prime is 245779344859. The reversal of 245779344820 is 28443977542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2430999 + ... + 2530081.

It is an arithmetic number, because the mean of its divisors is an integer number (10906671300).

Almost surely, 2^245779344820 is an apocalyptic number.

245779344820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245779344820 is an abundant number, since it is smaller than the sum of its proper divisors (277740877580).

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

245779344820 is a wasteful number, since it uses less digits than its factorization.

245779344820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100864 (or 100862 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 245779344820 in words is "two hundred forty-five billion, seven hundred seventy-nine million, three hundred forty-four thousand, eight hundred twenty".