61772046359 has 2 divisors, whose sum is σ = 61772046360. Its totient is φ = 61772046358.

The previous prime is 61772046293. The next prime is 61772046389. The reversal of 61772046359 is 95364027716.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61772046359 - 2⁸ = 61772046103 is a prime.

It is a super-2 number, since 2×61772046359² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61772046389) 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, 30886023179 + 30886023180.

It is an arithmetic number, because the mean of its divisors is an integer number (30886023180).

Almost surely, 2^61772046359 is an apocalyptic number.

61772046359 is a deficient number, since it is larger than the sum of its proper divisors (1).

61772046359 is an equidigital number, since it uses as much as digits as its factorization.

61772046359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 61772046359 in words is "sixty-one billion, seven hundred seventy-two million, forty-six thousand, three hundred fifty-nine".