245644704860 has 24 divisors (see below), whose sum is σ = 515888397360. Its totient is φ = 98251307264.

The previous prime is 245644704859. The next prime is 245644704871. The reversal of 245644704860 is 68407446542.

It is a junction number, because it is equal to n+sod(n) for n = 245644704799 and 245644704808.

It is a congruent number.

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, 98765 + ... + 707844.

It is an arithmetic number, because the mean of its divisors is an integer number (21495349890).

Almost surely, 2^245644704860 is an apocalyptic number.

245644704860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245644704860 is an abundant number, since it is smaller than the sum of its proper divisors (270243692500).

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

245644704860 is a wasteful number, since it uses less digits than its factorization.

245644704860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821845 (or 821843 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 50.

The spelling of 245644704860 in words is "two hundred forty-five billion, six hundred forty-four million, seven hundred four thousand, eight hundred sixty".