2061426377 has 2 divisors, whose sum is σ = 2061426378. Its totient is φ = 2061426376.

The previous prime is 2061426347. The next prime is 2061426379. The reversal of 2061426377 is 7736241602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1714870921 + 346555456 = 41411^2 + 18616^2 .

It is a cyclic number.

It is not a de Polignac number, because 2061426377 - 2⁸ = 2061426121 is a prime.

It is a super-3 number, since 3×2061426377³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 2061426379, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2061426377.

It is not a weakly prime, because it can be changed into another prime (2061426379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030713188 + 1030713189.

It is an arithmetic number, because the mean of its divisors is an integer number (1030713189).

Almost surely, 2^2061426377 is an apocalyptic number.

It is an amenable number.

2061426377 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061426377 is an equidigital number, since it uses as much as digits as its factorization.

2061426377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 2061426377 is about 45402.9335726228. The cubic root of 2061426377 is about 1272.6899351735.

Adding to 2061426377 its reverse (7736241602), we get a palindrome (9797667979).

The spelling of 2061426377 in words is "two billion, sixty-one million, four hundred twenty-six thousand, three hundred seventy-seven".