2644420262466 has 32 divisors (see below), whose sum is σ = 5573965271040. Its totient is φ = 834065375184.

The previous prime is 2644420262389. The next prime is 2644420262489. The reversal of 2644420262466 is 6642620244462.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13998930 + ... + 14186573.

It is an arithmetic number, because the mean of its divisors is an integer number (174186414720).

Almost surely, 2^{2644420262466} is an apocalyptic number.

2644420262466 is an abundant number, since it is smaller than the sum of its proper divisors (2929545008574).

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

2644420262466 is a wasteful number, since it uses less digits than its factorization.

2644420262466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28186350.

The product of its (nonzero) digits is 5308416, while the sum is 48.

The spelling of 2644420262466 in words is "two trillion, six hundred forty-four billion, four hundred twenty million, two hundred sixty-two thousand, four hundred sixty-six".