2478345641280 has 84 divisors (see below), whose sum is σ = 8524476371892. Its totient is φ = 660892170240.

The previous prime is 2478345641231. The next prime is 2478345641287. The reversal of 2478345641280 is 821465438742.

2478345641280 is a `hidden beast` number, since 2 + 4 + 78 + 3 + 4 + 564 + 1 + 2 + 8 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1310182415424 + 1168163225856 = 1144632^2 + 1080816^2 .

It is a super-2 number, since 2×2478345641280² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478345641287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 430265461 + ... + 430271220.

Almost surely, 2^{2478345641280} is an apocalyptic number.

2478345641280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2478345641280 is an abundant number, since it is smaller than the sum of its proper divisors (6046130730612).

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

2478345641280 is a wasteful number, since it uses less digits than its factorization.

2478345641280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860536704 (or 860536691 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 54.

The spelling of 2478345641280 in words is "two trillion, four hundred seventy-eight billion, three hundred forty-five million, six hundred forty-one thousand, two hundred eighty".