61790811233 has 2 divisors, whose sum is σ = 61790811234. Its totient is φ = 61790811232.

The previous prime is 61790811169. The next prime is 61790811263. The reversal of 61790811233 is 33211809716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55888269649 + 5902541584 = 236407^2 + 76828^2 .

It is a cyclic number.

It is not a de Polignac number, because 61790811233 - 2⁶ = 61790811169 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (61790811263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30895405616 + 30895405617.

It is an arithmetic number, because the mean of its divisors is an integer number (30895405617).

Almost surely, 2^61790811233 is an apocalyptic number.

It is an amenable number.

61790811233 is a deficient number, since it is larger than the sum of its proper divisors (1).

61790811233 is an equidigital number, since it uses as much as digits as its factorization.

61790811233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 61790811233 in words is "sixty-one billion, seven hundred ninety million, eight hundred eleven thousand, two hundred thirty-three".