2563365454240 has 48 divisors (see below), whose sum is σ = 6203657020680. Its totient is φ = 1000337735680.

The previous prime is 2563365454211. The next prime is 2563365454241. The reversal of 2563365454240 is 424545633652.

It can be written as a sum of positive squares in 4 ways, for example, as 598871681424 + 1964493772816 = 773868^2 + 1401604^2 .

It is not an unprimeable number, because it can be changed into a prime (2563365454241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195371905 + ... + 195385024.

Almost surely, 2^{2563365454240} is an apocalyptic number.

2563365454240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2563365454240 is an abundant number, since it is smaller than the sum of its proper divisors (3640291566440).

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

2563365454240 is a wasteful number, since it uses less digits than its factorization.

2563365454240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390756985 (or 390756977 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 49.

The spelling of 2563365454240 in words is "two trillion, five hundred sixty-three billion, three hundred sixty-five million, four hundred fifty-four thousand, two hundred forty".