245801245780 has 24 divisors (see below), whose sum is σ = 527165227008. Its totient is φ = 96228572448.

The previous prime is 245801245771. The next prime is 245801245829. The reversal of 245801245780 is 87542108542.

It is a self number, because there is not a number n which added to its sum of digits gives 245801245780.

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, 130744404 + ... + 130746283.

It is an arithmetic number, because the mean of its divisors is an integer number (21965217792).

Almost surely, 2^245801245780 is an apocalyptic number.

245801245780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245801245780 is an abundant number, since it is smaller than the sum of its proper divisors (281363981228).

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

245801245780 is a wasteful number, since it uses less digits than its factorization.

245801245780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261490743 (or 261490741 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 46.

The spelling of 245801245780 in words is "two hundred forty-five billion, eight hundred one million, two hundred forty-five thousand, seven hundred eighty".