2564669769490 has 16 divisors (see below), whose sum is σ = 4631249338560. Its totient is φ = 1022569295920.

The previous prime is 2564669769481. The next prime is 2564669769511. The reversal of 2564669769490 is 949679664652.

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 in 7 ways as a sum of consecutive naturals, for example, 412323220 + ... + 412329439.

It is an arithmetic number, because the mean of its divisors is an integer number (289453083660).

Almost surely, 2^{2564669769490} is an apocalyptic number.

2564669769490 is a deficient number, since it is larger than the sum of its proper divisors (2066579569070).

2564669769490 is a wasteful number, since it uses less digits than its factorization.

2564669769490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824652977.

The product of its (nonzero) digits is 1058158080, while the sum is 73.

The spelling of 2564669769490 in words is "two trillion, five hundred sixty-four billion, six hundred sixty-nine million, seven hundred sixty-nine thousand, four hundred ninety".