2640266806484 has 24 divisors (see below), whose sum is σ = 4648959443520. Its totient is φ = 1311993189504.

The previous prime is 2640266806439. The next prime is 2640266806519. The reversal of 2640266806484 is 4846086620462.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 41310737 + ... + 41374599.

It is an arithmetic number, because the mean of its divisors is an integer number (193706643480).

Almost surely, 2^{2640266806484} is an apocalyptic number.

It is an amenable number.

2640266806484 is a deficient number, since it is larger than the sum of its proper divisors (2008692637036).

2640266806484 is a wasteful number, since it uses less digits than its factorization.

2640266806484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127439 (or 127437 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 56.

The spelling of 2640266806484 in words is "two trillion, six hundred forty billion, two hundred sixty-six million, eight hundred six thousand, four hundred eighty-four".