2061481437796 has 135 divisors (see below), whose sum is σ = 4227602746395. Its totient is φ = 879390209280.

The previous prime is 2061481437791. The next prime is 2061481437797. The reversal of 2061481437796 is 6977341841602.

It is a happy number.

The square root of 2061481437796 is 1435786.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 543006872100 + 1518474565696 = 736890^2 + 1232264^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2061481437796.

It is not an unprimeable number, because it can be changed into a prime (2061481437791) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 5906823430 + ... + 5906823778.

Almost surely, 2^{2061481437796} is an apocalyptic number.

2061481437796 is the 1435786-th square number.

It is an amenable number.

2061481437796 is an abundant number, since it is smaller than the sum of its proper divisors (2166121308599).

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

2061481437796 is an frugal number, since it uses more digits than its factorization.

2061481437796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 2061481437796 in words is "two trillion, sixty-one billion, four hundred eighty-one million, four hundred thirty-seven thousand, seven hundred ninety-six".