2061440651 has 2 divisors, whose sum is σ = 2061440652. Its totient is φ = 2061440650.

The previous prime is 2061440617. The next prime is 2061440659. The reversal of 2061440651 is 1560441602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2061440651 - 2¹⁸ = 2061178507 is a prime.

It is not a weakly prime, because it can be changed into another prime (2061440659) 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 as a sum of consecutive naturals, namely, 1030720325 + 1030720326.

It is an arithmetic number, because the mean of its divisors is an integer number (1030720326).

Almost surely, 2^2061440651 is an apocalyptic number.

2061440651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061440651 is an equidigital number, since it uses as much as digits as its factorization.

2061440651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2061440651 is about 45403.0907648367. The cubic root of 2061440651 is about 1272.6928726758.

The spelling of 2061440651 in words is "two billion, sixty-one million, four hundred forty thousand, six hundred fifty-one".