2119773641 has 2 divisors, whose sum is σ = 2119773642. Its totient is φ = 2119773640.

The previous prime is 2119773629. The next prime is 2119773659. The reversal of 2119773641 is 1463779112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1644708025 + 475065616 = 40555^2 + 21796^2 .

It is a cyclic number.

It is not a de Polignac number, because 2119773641 - 2¹⁸ = 2119511497 is a prime.

It is not a weakly prime, because it can be changed into another prime (2119773661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059886820 + 1059886821.

It is an arithmetic number, because the mean of its divisors is an integer number (1059886821).

Almost surely, 2^2119773641 is an apocalyptic number.

It is an amenable number.

2119773641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2119773641 is an equidigital number, since it uses as much as digits as its factorization.

2119773641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 41.

The square root of 2119773641 is about 46040.9995656046. Note that the first 3 decimals coincide. The cubic root of 2119773641 is about 1284.5859347113.

The spelling of 2119773641 in words is "two billion, one hundred nineteen million, seven hundred seventy-three thousand, six hundred forty-one".