2578363591680 has 616 divisors, whose sum is σ = 9307176976512. Its totient is φ = 685056393216.

The previous prime is 2578363591669. The next prime is 2578363591709. The reversal of 2578363591680 is 861953638752.

2578363591680 is a `hidden beast` number, since 2 + 5 + 7 + 8 + 36 + 3 + 591 + 6 + 8 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1168265137 + ... + 1168267343.

Almost surely, 2^{2578363591680} is an apocalyptic number.

2578363591680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2578363591680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4653588488256).

2578363591680 is an abundant number, since it is smaller than the sum of its proper divisors (6728813384832).

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

2578363591680 is an equidigital number, since it uses as much as digits as its factorization.

2578363591680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563 (or 2530 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 63.

The spelling of 2578363591680 in words is "two trillion, five hundred seventy-eight billion, three hundred sixty-three million, five hundred ninety-one thousand, six hundred eighty".