2623021544644 has 12 divisors (see below), whose sum is σ = 4590344457664. Its totient is φ = 1311494556744.

The previous prime is 2623021544641. The next prime is 2623021544659. The reversal of 2623021544644 is 4464451203262.

It is a self number, because there is not a number n which added to its sum of digits gives 2623021544644.

It is not an unprimeable number, because it can be changed into a prime (2623021544641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3686232 + ... + 4339855.

Almost surely, 2^{2623021544644} is an apocalyptic number.

It is an amenable number.

2623021544644 is a deficient number, since it is larger than the sum of its proper divisors (1967322913020).

2623021544644 is a wasteful number, since it uses less digits than its factorization.

2623021544644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8107794 (or 8107792 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 43.

The spelling of 2623021544644 in words is "two trillion, six hundred twenty-three billion, twenty-one million, five hundred forty-four thousand, six hundred forty-four".