2061621376 has 32 divisors (see below), whose sum is σ = 4285713600. Its totient is φ = 985991424.

The previous prime is 2061621349. The next prime is 2061621377. The reversal of 2061621376 is 6731261602.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (2061621377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347196 + ... + 353083.

It is an arithmetic number, because the mean of its divisors is an integer number (133928550).

Almost surely, 2^2061621376 is an apocalyptic number.

It is an amenable number.

2061621376 is an abundant number, since it is smaller than the sum of its proper divisors (2224092224).

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

2061621376 is an equidigital number, since it uses as much as digits as its factorization.

2061621376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700316 (or 700304 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 2061621376 is about 45405.0809491625. The cubic root of 2061621376 is about 1272.7300636080.

Adding to 2061621376 its reverse (6731261602), we get a palindrome (8792882978).

The spelling of 2061621376 in words is "two billion, sixty-one million, six hundred twenty-one thousand, three hundred seventy-six".