2564380266764 has 6 divisors (see below), whose sum is σ = 4487665466844. Its totient is φ = 1282190133380.

The previous prime is 2564380266751. The next prime is 2564380266809. The reversal of 2564380266764 is 4676620834652.

It is a happy number.

It is a super-4 number, since 4×2564380266764⁴ (a number of 51 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320547533342 + ... + 320547533349.

It is an arithmetic number, because the mean of its divisors is an integer number (747944244474).

Almost surely, 2^{2564380266764} is an apocalyptic number.

It is an amenable number.

2564380266764 is a deficient number, since it is larger than the sum of its proper divisors (1923285200080).

2564380266764 is a wasteful number, since it uses less digits than its factorization.

2564380266764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641095066695 (or 641095066693 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 59.

The spelling of 2564380266764 in words is "two trillion, five hundred sixty-four billion, three hundred eighty million, two hundred sixty-six thousand, seven hundred sixty-four".