119564397649 has 2 divisors, whose sum is σ = 119564397650. Its totient is φ = 119564397648.

The previous prime is 119564397619. The next prime is 119564397677. The reversal of 119564397649 is 946793465911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97738767424 + 21825630225 = 312632^2 + 147735^2 .

It is a cyclic number.

It is not a de Polignac number, because 119564397649 - 2⁷ = 119564397521 is a prime.

It is not a weakly prime, because it can be changed into another prime (119564397619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59782198824 + 59782198825.

It is an arithmetic number, because the mean of its divisors is an integer number (59782198825).

Almost surely, 2^119564397649 is an apocalyptic number.

It is an amenable number.

119564397649 is a deficient number, since it is larger than the sum of its proper divisors (1).

119564397649 is an equidigital number, since it uses as much as digits as its factorization.

119564397649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44089920, while the sum is 64.

The spelling of 119564397649 in words is "one hundred nineteen billion, five hundred sixty-four million, three hundred ninety-seven thousand, six hundred forty-nine".