2027440554640 has 160 divisors (see below), whose sum is σ = 4813227933696. Its totient is φ = 794097907200.

The previous prime is 2027440554637. The next prime is 2027440554641. The reversal of 2027440554640 is 464550447202.

It is a super-2 number, since 2×2027440554640² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2027440554641) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 277461867 + ... + 277469173.

Almost surely, 2^{2027440554640} is an apocalyptic number.

2027440554640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2027440554640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2406613966848).

2027440554640 is an abundant number, since it is smaller than the sum of its proper divisors (2785787379056).

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

2027440554640 is a wasteful number, since it uses less digits than its factorization.

2027440554640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7797 (or 7791 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 43.

The spelling of 2027440554640 in words is "two trillion, twenty-seven billion, four hundred forty million, five hundred fifty-four thousand, six hundred forty".