2564354543280 has 80 divisors (see below), whose sum is σ = 7977789326304. Its totient is φ = 681394309120.

The previous prime is 2564354543237. The next prime is 2564354543323. The reversal of 2564354543280 is 823454534652.

It is an interprime number because it is at equal distance from previous prime (2564354543237) and next prime (2564354543323).

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18944679 + ... + 19079558.

Almost surely, 2^{2564354543280} is an apocalyptic number.

2564354543280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2564354543280 is an abundant number, since it is smaller than the sum of its proper divisors (5413434783024).

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

2564354543280 is a wasteful number, since it uses less digits than its factorization.

2564354543280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38024534 (or 38024528 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 51.

The spelling of 2564354543280 in words is "two trillion, five hundred sixty-four billion, three hundred fifty-four million, five hundred forty-three thousand, two hundred eighty".