2047440979920 has 320 divisors, whose sum is σ = 7572350767104. Its totient is φ = 447451361280.

The previous prime is 2047440979889. The next prime is 2047440979933. The reversal of 2047440979920 is 299790447402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104820555 + ... + 104840085.

Almost surely, 2^{2047440979920} is an apocalyptic number.

2047440979920 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 2047440979920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3786175383552).

2047440979920 is an abundant number, since it is smaller than the sum of its proper divisors (5524909787184).

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

2047440979920 is a wasteful number, since it uses less digits than its factorization.

2047440979920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22290 (or 22284 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 57.

The spelling of 2047440979920 in words is "two trillion, forty-seven billion, four hundred forty million, nine hundred seventy-nine thousand, nine hundred twenty".