2926391641 has 2 divisors, whose sum is σ = 2926391642. Its totient is φ = 2926391640.

The previous prime is 2926391639. The next prime is 2926391659. The reversal of 2926391641 is 1461936292.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2097182025 + 829209616 = 45795^2 + 28796^2 .

It is a cyclic number.

It is not a de Polignac number, because 2926391641 - 2¹ = 2926391639 is a prime.

Together with 2926391639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2926391621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1463195820 + 1463195821.

It is an arithmetic number, because the mean of its divisors is an integer number (1463195821).

Almost surely, 2^2926391641 is an apocalyptic number.

It is an amenable number.

2926391641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2926391641 is an equidigital number, since it uses as much as digits as its factorization.

2926391641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 2926391641 is about 54096.1333276233. The cubic root of 2926391641 is about 1430.3560234707.

The spelling of 2926391641 in words is "two billion, nine hundred twenty-six million, three hundred ninety-one thousand, six hundred forty-one".